PNABD246.pdf

humidity favour the popula*.on build up of pests resulting in higher levels of
incidence in the kharif crop. Incidence of major insect pests of blackgram as
well as their natural enemies during kharif and summer crops is discussed. [AS]
*0659 Gurha, S.N. ; Misra, D.P. ; Singh, R.A. ; Gangal, L.K. 1984. Yield
stimulatory potential of temik and disyston in urid. PESTICIDES,
v.18(8):34-35. [En] (REP.MB-2532)
A field trial of blackg:am variety PS I was conducted to evaluate the yield
response due to aldicarb and disulfoton treatments, during kharif season of
1979. Dry weather condition considerably warded off the insect populat!)n and
the prevalence of diseases. The average yields over control were higher by 60
and 27%, respectively, for plots treated with aldicarb and disulfoton. [THH]
*0660 Patel, K.G. ; Vyas, H.N. 1984. Seasonal abundance of green lacewing,
Chrysopa (=Chrysoperla) scelestes Banks on cotton, green gram and groundnut at
Junagadh (Gujarat). AGRICULTURAL SCIENCE DIGEST, v.4(I):7-8. [En] [En Abst]
(REP.MB-2655)
Studies on the seasonal abundance of green lacewing, Chrysopa
(=Chrysoperla) scelestes Banks on cotton, mungbean and groundnut crops at
Junagadh during 1981-82, revealed that the Chrysopa population, comprising of
average number of egg, larva and pupa per 20 plants was the highest in mungbean
(22.25) during September, followed by cotton (18.25) and groundnut (5.00). The
second peak of Chrysopa population was observed in the cotton crop during
January. It coincided with aphid infestation. [AS]
*0661 Saxena, A.K. ; Rathore, V.S. ; Khatri, A.K. ; Choudhary, B.S. 1984.
Economics of insecticidal spray schedule on different blackgra varieties.
INDIAN JOURNAL OF PLANT PROTECTION, v.12(1):25-29. [En] [En Abst]
(REP.MB-2830)
The blackgram is infested by six major pests, viz., green jassid, green
semilooper, bean aphid, eumolpid flea beetle, pea thrips and pod borer. The
eumolpid flea beetle, Colposcelis kanaraensis (Jacoby), appears to be the first
record. The early varieties Pant U-30 and JU-78-4 were less infested by the
pest complex and also higher yielding than others. The crop treated with
insecticides gave an increased yield of 300 to 600 kg/ha (30 to 58% more) over
the untreated (benefit/cost ratio 3.9 to 4.9), saving an avoidable loss of 23
to 37% due to the pest complex of blackgram. [AS]
*0662 Young, G.R. 1984. A checklist of mite and insect pests of vegetable,
grain and forage legumes in Papua New Guinea. PAPUA NEW GUINEA JOURNAL OF
AGRICULTURE, FORESTRY AND FISHERIES, v.33(1-2):13-38. [EnJ [En AbstJ (A:PS)
Over 100 species of both mites and insects have been recorded as feedtng on
vegetables, grain and forage legumes in Papua New Guinea. A checklist of these
pests is presented, giving host plants and localities, and some assessment of
the type of damage. [AS]
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