ISA

Development of weather based forewarning model for mustard aphid, Lipaphis erysimi (Kalt.) - 317 - in Tarai region of Uttarakhand

Patel S;Singh C P

Diplocyclos palmatus (L.) Jeffry: Morphological variations and medicinal values

Patel D K

Effect of grafting tomato on different rootstocks under protected environment in mid hills of NW himalayan region

Pardeep Kumar;Sharma P;Vats B

Morphometric characterstics of silver carp (Hypophthalmichthys molitrix) under captive conditions

Pant B;Rajinder Kaur;Lohani V;Ram R N

Effect of different rice cultivation methods on yield of the crop

Panda N;Tripathy S;Behera P;Das B;Das G B

Reaction of a number of popular rice cultivars and some donor lines to sheath blight (Rhizoctonia solani Kuhn) disease in Odisha

Pal R;Mandal D;Biswas M K;Sen Naik B

023007 Pal R;Mandal D;Biswas M K;Sen Naik B (All India Co-ordinated Rice Improvement Project, Orissa Univ of Agriculture and Technology(O.U.A.T), Chiplima-768 025, Email: rinipatho@gmail.com) : Reaction of a number of popular rice cultivars and some donor lines to sheath blight (Rhizoctonia solani Kuhn) disease in Odisha. J mycopathol Res 2018, 55(4), 359-63.

A study was conducted at All India Coordinated Rice Improvement Project, RRTTS, Chiplima, Sambalpur, Odisha to find out a few popular cultivars and donor lines resistant to sheath blight pathogen both under field and laboratory conditions. Out of eighteen popular varieties of Odisha screened against sheath blight under field condition, three varieties (Tejaswini, Pratikshya and Mrunalini) were categorized as moderately resistant. Most of the varieties screened were either moderately susceptible (five varieties) or susceptible (six varieties). Four varieties were designated as highly susceptible. None of the entry in the present study was recorded as immune or resistant. The three cultivars (Tejaswini, Pratikshya and Mrunalini) graded as moderately resistant after field screening gave same result under in vitro conditions also confirming them as moderately resistant to sheath blight pathogen, Rhizoctonia solani. Thirty four donor entries were simultaneously screened against sheath blight pathogen after artificial inoculation under field condition. Among them, three donor entries DRR- BL-257-2, DRR-BL-295-1 and DRR-BL-295-2 showed good results consecutively for two years of screening and were considered to be moderately resistant to the disease. Five donor lines were graded as moderately susceptible, nine lines exhibited susceptible reactions to the disease while 17 donor lines were graded as highly susceptible to the disease. None of the lines screened was found highly resistant or immune to Rhizoctonia solani. The three cultivars which were found moderately resistant to the disease will be beneficial to the farmers in sheath blight endemic areas to reduce the extent of crop damage as well as yield loss. The three donor lines identified as moderately resistant will be helpful in resistant breeding programme.

3 tables, 14 ref

Influence of summer mugbean genotypes on grain yield and resource-use efficiency in Kandahar province of Afghanistan

Noorzai A U;Choudhary A K

Effect of integrated weed management on nutrient uptake and yield of wheat

Noori M T;Patro H;Ray M

Effect of sowing dates and abiotic variables on natural incidence of predators and parasitoids of aphid species infesting yellow mustard (Brassica compestris)

Nisar S;Rizvi P Q

Survey of acid lime growing regions of northern Karnataka for the incidence and severity of citrus canker

Nethravathi S P;Yadahalli K B

Dry matter partitioning and yield of machine-transplanted rice (Oryza sativa L.) as influenced by age and number of seedlings

Negalur R B;Halepyati A S

Introgression of shootfly tolerance traits in sorghum (Sorghum bicolor(L.) Moench) by using back cross breeding technique"

Nawalkar P W;Gahukar S J;Akhare A A;Herode P S;Ghorade R B;Wadaskar R M

Influence of weather parameters on pests of cashew in Konkan

Navik O S;Godase S K

Growth analysis of in situ raised mango plants under rain fed condition in alfisols of eastern India

Nath V;Singh H S;Kishore K;Samant D

022999 Nath V;Singh H S;Kishore K;Samant D (NO, ICAR-National Research Centre of Litchi, Muzaffarpur-845 002, Email: nrclitchi@yahoo.co.in) : Growth analysis of in situ raised mango plants under rain fed condition in alfisols of eastern India. Int J Innovative Hort 2017, 6(1), 84-8.

Mango is one of the most important perennial fruit crops of hot humid region of eastern India. It is cultivated on a large area in Andhra Pradesh, Odisha, West Bengal, Jharkhand, Chhatishgarh and Bihar and contributes significantly in total mango production of the country. Uplands in these regions mainly includes the plateau land with Gondwana rocks/ murrum formation in sub soil and the hillocks up to 40-50 m height with fragmented stones and a bit friable sub soil are barren. Such areas constitute roughly 35-40 % of the total area in this region which awaits interventions to make them green and yellow with plantation of fruit species. Mango does well in these areas but needs irrigation and intensive care for the establishment of nursery raised saplings. In situ method has been found successful for establishment of orchards in disadvantageous areas and this method could be utilized for mango too. Owing to variations in rootstocks and influence of external factors, in situ raised mango plant - 312 - exhibits variation in growth during initial years. In this study, an attempt has been made to analyse the growth behaviour of in situ raised as well as nursery raised plants at Central Horticultural Experiment Station, Bhubneswar with Amrapali and Arka Neelachal Kesri varieties of mango. The results reveal that the in situ raised plant gave 90.85% successes in Arka Neelachal Kesri where as nursery raised plant gave 99.63% success rate after three years. Amrapali gave 96.25% success under in situ conditions. In Arka Neelachal Kesri 51.95 % plants produced less than 10 cm² trunk cross sectional area (TCA) under in situ conditions where as more than 70 % plants produced 30-60 cm² TCA in nursery raised plants. Also, 47.25 % plants produced 10-20 cm² TCA above graft union in Amrapali under in situ condition. With respect to canopy area (m²), 43.75 % in situ raised Amrapali plants produced canopy area of 1-2 m² where as in Arka Neelachal Kesri 40.04 % plants produced less than 1 m² canopy area and 32.92 % plants produced 1-2 m² canopy area. Other growth characters like canopy volume (m³), number of primary, secondary and tertiary branches were also recorded and compared with in situ raised mango plants of Arka Neelachal Kesri and Amrapali with nursery raised plants. The detailed data on various growth parameters have been presented.

3 illus, 6 tables, 10 ref

Management of leafhopper (Amrasca biguttulla biguttulla ishida) in summer crop of okra through on-farm trial

Nath P;Sinha S;Kushwaha S;Singh M K

022998 Nath P;Sinha S;Kushwaha S;Singh M K (Entomology Dep, B. P. S. Agricultural College, Purnea-854 302, Email: parasbpsac@gmail.com) : Management of leafhopper (Amrasca biguttulla biguttulla ishida) in summer crop of okra through on-farm trial. Ann Agri Bio Res 2017, 22(2), 236-40.

Field experiments were conducted for the management of leafhopper (Amrasca biguttulla biguttulla Ishida) through farmer's participatory approach in Supaul district of Bihar during summer season of 2008 to 2010. The data of survey conducted during summer season 2008 showed that monocrotophos 36 WSC @ 1-1.5 1/ha was most frequently used by the farmers (77.0%) which did not control the pest at desired level and gave B: C ratio 1.69: 1. The result of on-farm trial (OFT) conducted during summer season of 2009 and 2010 showed that seed treatment with imidacloprid 70 WS and thiomethoxam 25 WG @ 2 g/kg significantly reduced leafhopper population. The impact of foliar spray of monocrotophos 36 WSC was significantly low. The highest yield (108.60 q/ha) was obtained from imidacloprid 70 WS seed treated fields followed by thiomethoxam 25 WG seed treated fields (107.80 q/ha) which were significantly superior over the farmers' practice of foliar spray of monocrotophos 36 WSC (82.93 q/ha) which fetched low yield. The maximum gross returns, net returns and B: C ratio were obtained from imidacloprid 70 WS treated fields which were Rs. 162900.00/ha, Rs. 97376.00/ha and 2.49: 1, respectively. Similar trend and slighty less gross returns, net returns and B: C ratio were obtained from thiomethoxam 25 WG seed treated fields. The lowest performance of fanners' practice with foliar spray of monocrotophos 36 WSC was due to low efficacy against leafhopper in okra. Large scale demonstrations were conducted during summer season of 2010 among farmers of seven villages in Supaul, Bihar for the dissemination of insecticidal seed treatments clearly indicated that seed treatment with imidacloprid 70 WS @ 2 g/kg seed or thiomethoxam 25 WG @ 2 g/kg seed gave significant reduction of leafhopper in okra for 42-45 days. The impact of technological intervention changed the mind set of neighbouring fanners. The results encouraged the farmers to save their crops from the menace of leafhopper.

3 tables, 8 ref

Isolation and identification of Bacillus amyloliquefaciens strains for bio-control of grapevine anthracnose

Narkar S P;Sawant I S;Shete H G

Evaluation of yield attributes and yield on pearl millet (Pennisetum glaucum) and mungbean (Vigna radiata L.) intercropping system under arid western plain zone of India

Naresh Kumar;Bairwa R C;Yadav R S;Singh S P; Sharma R

Evaluation of husbandry, insect pests, diseases and management practices of vegetables cultivated in zoba Anseba Eritrea

Naqvi S D Y;Haile A;Rao S;Teweldemedhin B; Sharma V;Nyende A B

022995 Naqvi S D Y;Haile A;Rao S;Teweldemedhin B; Sharma V;Nyende A B (NO, Hamelmalo Agricultural College, Hamelmalo, Eritrea, Email: syeddanishnaqvi84@gmail.com) : Evaluation of husbandry, insect pests, diseases and management practices of vegetables cultivated in zoba Anseba Eritrea. J Ecofriendly Agric 2017, 12(1), 47-50.

A field survey was carried out for vegetables in three sub-zobas of zoba Anseba, Eritrea. The farmers were interviewed with the objectives of the types of cultivation and management practices, diseases and pests attacking the vegetable crops and the education level of farmers and understanding management practices. In sub-zoba Hagaz, about 62.50 per cent farmers were using the locally available seed and 37.50 per cent used seed stored from previous crop. In Adi-Tekeliezan only 34.88 per cent used their own seed, whereas 65.51 per cent of farmers buy from market, which could be a reason for low disease severity and infestations. In Hamelmalo, 64.51 per cent and 61.29 per cent of growers used the seed from their previous crops and purchased from market, respectively. Potato varieties Ageba, Sudan White, Red and Yemani; tomato variety Sumberson and okra variety Bloctihona were the major seed sources used by most of the farmers. About 51.72 per cent of farmers use irrigation in Adi-Tekeliezan and the rest of 49.27 per cent depend on rainfed cultivation. Farmers invariably do hand weeding and on an average three weedings are done in a cropping season, whereas in Wazantet and Zeron it was for 5-6 times. In sub-zoba Hamelmalo, many farmers (19.35%), sun-dry their seeds before growing seedlings. The application of cow dung ash or pure wood ash on the seed is also practiced by 58.06, 89.65 and 81.25 per cent of the farmers in sub-zobas Hamelmalo, Adi-Tekeliezan and Hagaz, respectively. Tuta absoluta, african boll worm, whitefly, Helicoverpa and aphids are major pests on tomato, cucumber, cabbage and chillies; Jassids, potato tuber moths and whitefly were of potato; thrips of onion; aphids and whitefly of okra, chilies, egg plant and pepper in all the three zobas. Alternaria blights reported on potato, tomato, okra and chilies from all the three sub zobas; powdery mildews in chilies and okra noticed from medium to high intensity; viral disease mosaic in cucumber and okra; dieback diseases observed on onion in the fields of Hagaz. Though, some educated farmers use few pesticides, others do not have proper education and awareness for the use of the chemicals.

3 illus, 8 ref

Occurrence and prevalence of diseases and insect pests on vegetable crops in zoba anseba, Eritrea

Naqvi S D Y;Haile A;Rao S;Teweldemedhin B; Sharma V K

022994 Naqvi S D Y;Haile A;Rao S;Teweldemedhin B; Sharma V K (NO, Hamelmalo Agricultural College, Hamelmalo, Eritrea, Email: syeddanishnaqvi84@gmail.com) : Occurrence and prevalence of diseases and insect pests on vegetable crops in zoba anseba, Eritrea. J Ecofriendly Agric 2017, 12(1), 29-40.

The survey was conducted and focused on disease incidence, severity and infestation of insect pests on vegetable crops grown during the cropping season in three sub zobas of Hamelmalo, Hagaz and Adi-Tekeliezan of Zoba Anseba in Eritrea. During the survey 100 subsistence farmers were selected randomly for interview using structured questionnaires. The main vegetables grown in the three sub zobas were tomato, potato, chilli, egg plant, okra, onion, zucchini and carrot. Samples of the vegatables (plants and fruits) were brought to the laboratory for identification of disease and insect pests. The major vegetable diseases observed during the - 309 - cropping season were early blight, powdery mildew, late blight, leaf curl virus and blossom end rot on tomato, downy mildews and purple blotch on onion, wilt, anthracnose, late blight, collar rot and scab on potato. Leaf minor, fruit borer, whitefly, African boll worm, aphids, cutworm, potato tuber moth, spider mites, jassids, less wing bug and thrips were observed as the major insect pests. Wherever the insect pests occurred, there was also incidence of leaf curl disease because of the transmitted viruses. Leaf curl virus and powdery mildews appeared in tomato and chilli; collar rot in potato; powdery mildews in zucchini and carrot almost in all villages where the crops are grown. On the other hand, percentage of severity prevailed due to whiteflies and infestation by fruit borer and aphids and registered in all grown crops of sub-zoba Hamelmalo. Tomato and okra showed low to medium percentage of disease severity. Powdery mildew was recorded medium to high in Hagaz and low to high in Derotay,

12 illus, 7 tables, 11 ref

Development of Mahua (Madhuca indica) Laddu and its popularization in tribal areas

Nandana Kumari;Raghuvanshi R S

022993 Nandana Kumari;Raghuvanshi R S (NO, KVK, Bokaro, Jharkhand, Email: nandanakumari.1973@gmail.com) : Development of Mahua (Madhuca indica) Laddu and its popularization in tribal areas. J Ecofriendly Agric 0000, 13(1), 91-5.

Mahua flower is one of the most important non-timber forest produce (NTFP) in Jharkhand state, but, major part of mahua flower production (80 to 90%) is misused in the making and sale of unhealthy alcoholic liquor in Jharkhand state, just for quick and more earnings. As per collected information from the tribals, previously the same mahua flowers were consumed by tribals and others as mahua laddu also. But now-a-days, it is not in practice, because it has many drawbacks (look, shelf life, nutritive and sensory value etc.). Therefore, an on farm trial (OFT) was conducted to prepare mahua laddu scientifically with the objective to overcome all drawbacks of traditional mahua laddu and for healthy utilization of mahua flowers in place of harmful liquor. Three options were tried in OFT, each with 8 replications. In first option, as farmers' practice (FP), mahua laddu prepared with traditional method and second and third options were scientific methods i.e. Technological Option I (TO I) and Technological Option II (TO II). Mahua laddus were prepared with scientific method by using local resources and local facilities of rural areas. After developing technology for laddus, their nutritive value was estimated and sensory evaluations (of six parameters) were done through score card method. The economics were also calculated. The result revealed that mahua laddus prepared by TO II was richest in many nutrients among the three options. This mahua laddus were with protein (19.44 g), carbohydrate (135.38 g), energy (135.38 Kcal) and calcium (63.74 mg). The overall acceptability on the date of preparation of FP, TO I and TO II were 6.87, 7.77 and 8.75 respectively. So, it was clear that mahua laddu of TO II was liked most by farm women and others. After calculation, it was found that the cost of mahua laddu (per kg) of FP, TO I and TO II were 32.40, 60.00 and 58.00 rupees respectively. When, shelf life of mahua laddus were studied, it was found that mahua laddus of TO I and TO II had shelf life of 5 weeks from the date of preparation, whereas mahua laddus of FP had shelf life hardly of 1 week only. Traditional mahua laddus (of FP) was found on third position in the studied parameters (nutritive value, shelf life and sensory evaluation), except for economic point of view. Thus, the scientific mahua laddus (TO II) were popularized through the demonstration in many block level and district level kisan melas, exhibitions and through distribution of leaflets and handout written in Hindi among farmers and other persons, who visited kisan mela stall in bokaro and in other parts of Jharkhand state and the response was very encouraging.

4 tables, 8 ref

KCRS listeners preference towards agricultural programmes aired in radio and suggestions to improve the programme broadcasting

Naik V S;Manjula N

Listeners knowledge and perception on programme broadcasted by KCRS in Dharwad

Naik V S;Manjula N

Socio-economic analysis of ogranic and non-organic vegetable growers in Belgaum district of Karnataka

Naik V;Kunnal L B;Nethrayini K R

Effect of microbial treatments on total phenolics and growth promotion on pigeonpea

Naik S;Singh H B

Effect of sulfur and boron on yield of mustard (Brassica juncea L.) and its nutrient uptake

Naik P;Barik A;Singh A B;Pati P;Santra G H; Swain D;Nanda A

Mitigating effect of foliar applied ascorbic acid on morpho-physiological, biochemical changes and yield attributes induced by salt stress in Vigna radiate

Nagda J K;Bhanu N A;Katiyar D;Hemantaranjan A;Yadav D K

Immature embryo culture in wild Areca spp.

Muralikrishna K S;Rajesh M K;Sajini K K; Nagaraja N R;Ananda K S;Karun A

Severity of infestation by collar feeding insect pest (Agrotis ipsilon) on potato in northern districts of Kashmir

Munib M

Available micronutrient status and its relationship with soil properties of Sriganganagar district of Rajasthan

Mukesh Kumar;Yadav S R

Response of date of transplanting on phenology, growth, grain yield and economics of basmati rice (Oryza sativa) varieties

Mukesh Kumar;Singh I;Singh B;Pannu R K;Dhaka A K

Impact of irrigation and nitrogen levels on dry matter partitioning and yield of late sown wheat

Mukesh Kumar;Pannu R K;Singh B

022982 Mukesh Kumar;Pannu R K;Singh B (Agronomy Dep, CCS Haryana Agricultural Univ, Hisar-125 004, Email: mukeshkumarkainwal@gmail.com) : Impact of irrigation and nitrogen levels on dry matter partitioning and yield of late sown wheat. Ann Agri Bio Res 2017, 22(2), 196-200.

Dry matter partitioning, yield and HI of late sown wheat (Triticum aestivum L.) were investigated under different levels of irrigation and nitrogen. Experiment was carried out at the Research Farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar during rabi seasons of 2010-11 and 2011-12. The experiment consisting of three irrigation levels viz., one irrigation at CRI, two irrigations at CRI and heading and four irrigations at CRI, late tillering, heading and milking in main plots and five nitrogen levels viz., control i. e. 0 kg N/ha, 50 kg N/ha, 100 kg N/ha, recommended dose of nitrogen i. e. 150 kg N/ha and 200 kg N/ha in sub-plots was laid out in strip plot design with four replications. Results of experiment revealed that percent contribution of different plant parts i. e. leaves, stem and earhead increased with the advancement of crop age except leaves and stem, which declined after 90 DAS during both the years. The per cent contribution of stem remained around 50% up to 90 DAS and then declined drastically till maturity. The increased level of irrigation increased the dry matter accumulation in leaves and earhead significantly at all the growth stages. Increased level of nitrogen dose increased the partitioning in favour of leaves at all the growth stages. Absolute dry matter accumulation in earhead at maturity increased significantly with increase in nitrogen dose up to 100 kg N/ha in 2010-11 and 150 kg N/ha during 2011-12. Dry matter accumulation increased significantly with increased levels of irrigation and nitrogen. The maximum grain yield and HI were obtained with four irrigations which was significantly higher than one and two irrigations. Increase in nitrogen dose increased the grain yield and HI significantly up to 150 kg N/ha.

3 tables, 16 ref

Analytical approach to assess the level of tolerance among farmers towards wildlife conflict

Mukesh Kumar;Meena H R;Paul P;Meena B S

DUS testing for plant variety protection

Mufti S;Afroza B;Bhat R;Mushtaq F;Nabi A

Evaluation of yield gap in various cultivars of wheat under climatic conditions of Ardabil region, Iran

Moosavi S S;Abad H H S;Mohamadi G N;Imani A A

022979 Moosavi S S;Abad H H S;Mohamadi G N;Imani A A (Agronomy, Science and Research Branch Dep, Islamic Azad University, Tehran, Iran, Email: H.heidari1871@hotmail.com) : Evaluation of yield gap in various cultivars of wheat under climatic conditions of Ardabil region, Iran. Crop Res 2017, 52(1-3), 14-20.

In order to determine the yield gap of the common wheat cultivars in Ardabil region, an experiment was carried out in a randomized complete block design with three replications in Ardabil Islamic Azad University Agricultural Research Station in two agricultural years of 2014-15 and 2015-16. The studied cultivars included Pishgam, Gaskogen, Gaspard, Siosson and MV 17. In order to evaluate the actual yield, 30 farms from three different locations (from villages of Namin County and Ardabil) were chosen and during two agricultural years of 2014-15 and 2015-16, all management factors were completed and collected during the growing season and ultimately, the seed yield was measured by the help of the farmers. After measuring the seed yield in the research center and field, the yield gap was estimated. Analysis of variance results suggested that there was a significant difference between the studied cultivars in the research center and the field on seed yield at one per cent. Also, results showed that there was no significant difference found between the years and the interaction of the year on cultivar. Data - 302 - mean comparison results in the research center indicated that Siosson with the mean of 6,627.7 kg/ha had the highest seed yield and MV17 with the mean of 5,498.5 kg/ha had the lowest seed yield. Also, data mean results in the field showed that Pishgam with a mean of 5,900 kg/ha had the highest seed yield and MV 17 with a mean of 4,340.8 kg/ha had the lowest seed yield. By studying the yield gap, the results showed that the highest yield gap in 2014 was related to MV 17 in Location 2 with 2,367 kg/ha and the lowest yield gap for this year was related to Pishgam in Location 2 with a mean of 84 kg/ha. The highest yield gap in the second year (2015) was related to MV17 in Location 2 with 2,305 kg/ha and the lowest yield gap for this year was related to Pishgam in Location 2 with a mean of 63 kg/ha.

6 illus, 2 tables, 26 ref

Performance of green gram - sesame mixed cropping in the red and lateritic zone of West Bengal

Moinuddin G

Assessment of maize (Zea mays L.) productivity and yield gap analysis using simulation modelling in subtropical climate of central India

Mohanty M;Sinha N K;Patidar R K;Somasundaram J;Chaudhary R S;Hati K M;Reddy K S;Prabhakar M;Cherukumalli S R;Patra A K

Estimation of arsenic and mercury in fishes from river Ganga for riverine ecosystem ehalth biomonitoring and assessment

Mohanty B P;Ganguly S;Mahanty A;Mitra T;Paria P;Behera B K;Das B K

Studies on the performance of various varieties of sesamum (Sesamum indicum L.) under rainfed conditions of eastern U. P.

Mohan B;Rajeev Kumar;Singh B;Anil Kumar; Pradeep Kumar

Bionomics of mycophagous coccinellid, Halyzia tschitscherini Semenor (Coleoptera: Coccinellidae) on mulberry in temperate region of Kashmir

Mittal V;Ramegowda G K;Irfan I;Babulal;Sharma S P

022974 Mittal V;Ramegowda G K;Irfan I;Babulal;Sharma S P (Central Sericultural Research & Training Institute, Central Silk Board, Pampore-192 121, Email: vishalmittal777@yahoo.com) : Bionomics of mycophagous coccinellid, Halyzia tschitscherini Semenor (Coleoptera: Coccinellidae) on mulberry in temperate region of Kashmir. Indian J For 2016, 39(1), 57-61.

The mycophagous insect Halyzia tschitscherini Semenor is a potential biocontrol agent of Powdery Mildew, Phyllactinea corylea (Pess.) in Mulberry. The present study covers the bionomics of H. tschitscherini and its feeding behavior on Powdery Mildew infected Mulberry leaves. The eggs are laid in cluster os 5-24 with an average of 17.75±5.40 eggs per leaf on the abaxial surface of infected leaves. The incubation period was recorded 4.46±0.50. The larval span of first, second, third and fourth instars was recorded as 2.54±0.50, 3.91±0.80, 4.68±0.71, 5.70±0.70 days respectively and total larval span about 16.83 days and for entire life cycle in 30 days. The measurements in mean length and breadth of different stages of H. tschitscherini viz. Eggs (1.69 0.04 & 0.71±0.02), first instar (1.92±0.15 & 0.68±0.02), second instar (3.97±0.32 & 0.82±0.12), third instar (5.50±0.65 & 1.26±0.14), fourth instar (8.21±0.74 & 1.93±0.20) pupa (5.22±0.23 & 3.35±0.23) and male (5.30±0.72 & 3.35±0.41) and female adults were 5.83±0.20 & 3.59±0.24, respectively. The grubs feed only on conidia during first instar, on conidia and conidiophores during second instar, and also on parts of mycelia during third instar. The final instar grub feed on entire aerial mycelia mass leaving only stomatopodia and hyphal remnant. Pupation is for 9-10 days. Adults also feed voraciously on the fungal mass. Field observations indicated a drastic fall in the incidence of Powdery Mildew disease in Mulberry even in the usual peak disease period, with the increased population of H. tschitscherini in the Mulberry garden.

3 illus, 11 ref

Forewarning powdery mildew of mango (Mangifera indica L.) caused by Oidium mangifereae berthet

Misra A K;Dalvi M B;Agarwal R;Salvi B R