PNABD246.pdf

egards to the percentage of adult emergence, however, the variety No. 122
recorded the lowest percentage of emergence while S.S.M. I showed the highest.
[AS]
*0738 Sinha, M.M. ; Yadav, R.P. ; Kumar, A. 1975. Outbreak of the Bihar
hairy caterpillar, Diacrisia obliqua Walker in North Bihar. ENTOMOLOGISTS'
NEWSLETTER, v.5(10/11):47. JEnJ (REP.MB-2762)
In early September 1975, an outbreak of Bihar hairy caterpillar, (Diacrisia
obllqua Walker) in north Bihar, India, caused severe damage to blackgram,
mungbean, soybean, cowpea, sweet potato, til (Sesamum sp.), sunflower, peanut,
maize and jute. In a preliminary field trial with 14 insecticides on blackgram,
0.05% dichlorvos, leptophos or quinalphos, 0.04% monocrotophos or phenthoate,
0.06% phosalone, 0.07% endosulfan and 0.01% formothion reduced the larval
population considerably. [THH]
*0739 Srivastava, A.S. ; Awasthi, B.K. ; Nigam, P.M. 1975. Incidence of
Hyllocerus maculosus Desb., on leguminous crops (Coleoptera: Curculionidae).
LABDEV JOURNAL OF SCIENCE AND TECHNOLOGY, PART B: LIFE SCIENCE,
v.13(3/4):215-216. [EnJ [En Abst] (REP.MB-2680)
A monthly survey to monitor the incidence of adult Myllocerus maculosus
Desb. on various leguminous crops was carried out in different localities of
Kanpur district. The crops found infested were mungbean, blackgram, cowpea, and
soybean. Percentage infestation varied from 23.7-29.4; 19.5-44.0; 26.0-46.0 and
27.0-45.0 in mungbean, soybean, blackgram and cowpea crops, respectively. Peak
infestation was recorded in August. [AS]
*0740 Pal, S.K. ; Kushwaha, K.S. 1977. Relative toxicity of some
insecticides to the adults of moong veevil, Cyrtozemia cognata Marshall.
INDIAN JOURNAL OF ENTOMOLOGY, v.39(4):381-383. [En] (REP.MB-2595)
Laboratory tests were conducted in India on the relative toxicity of 6
insecticides to the adults of Cyrtozemia cognata Marshall, a leaf weevil of
mungbeans. The toxicity (LC 50) indicated that lindane (gamma HCH) was the most
toxic, followed by monocrotophos, dicrotophos, carbaryl, phosphamidon and
endosulfan. At the LC 90 level, dicrotophos was the most toxic, followed by
carbaryl, lindane, monocrotophos, phosphamidon and endosulfan. [THH]
*0741 Yadav, R.P. ; Singh, R. 1977. Studies on the larval development of
Bihar hairy caterpillar (Diacrisia obliqua Walker) in relation to some host
plants at Dholi (North Bihar). SCIENCE AND CULTURE, v.43(5):233-234. [En]
(REP.MB-2597)
In laboratory rearing trials with Bihar hairy caterpillar (Dicrisia obliqua
Walker), a polyphagous pest causing severe damage to a variety of crops in
India, the survial rate, duration of larval period and larval weight at 6 days
and 12 days after hatching were observed on ten different food plants.
According to these criteria, til (Sesamum sp.) was the best food plant for
larval development, followed by blackgram, sweet potato, soybean, sunflower,
cowpea, mungbean, bhant (Clerodendron sp.), peanut and pigeonpea. [THH]
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