PNABD246.pdf

eanfly (Ophiomyia phaseoli Tryon) and leaf miner (Acrocercops phaseospora
Meyr) on mungbean. Monocrotophos (0.04%) and endosulfan (0.07%) sprays were
useful in reducing the Jassid population at later stage of mungbean growth and
in minimizing the pod borer damage. A similar trend was also observed in pea.
The correlation coefficient between plant height, leaf and grain yield was
positive in both mungbean and pea. Insecticide residues in the dry seeds were
not detectable, and there was also no danger of soil contamination with the
insecticide residues. [THHJ
*0651 Yein, B.R. ; Singh, Harcharan 1981. Effects of some agricultural
chemicals on the control of chewing insect pests of greengram. JOURNAL OF
RESEARCH (PUNJAB AGRICULTURAL UNIVERSITY), v.18(I):30-36. [Enj [En AbstJ
(REP.MB-2311)
The treatment, involving the application of endosulfan at 0.12 kg of
a.i./ha as two sprays applied 4 and 8 weeks after sowing mungbean, was the most
effective in controlling the galerucid beetle (Luperodes sp.) and semi-looper
(Anomis flava Fab.). The treatment gave 65 to 80 and 24 to 25% reduction in the
number of holes and in the infestation of leaves, respectively, by the beetle
and 76 to 78% mortality of the semi-looper as compared with control. Soil
application of aldicarb k1.5 kg of a.i./ha), gave 30 to 31 and 3 to 6%
reduction in the number of holes and in the infestation of the leaves,
respectively, by the beetles and 43 to 46% mortality of the semi-loopers, was
however, appreciably less effective in controlling the pests. In the case of
the pod-borer (Etiella zinckenella Treit.) of lima bean both pesticides were
ineffective. Application of nitrogenous (12.5 kg of N/ha), and phosphatic (40
kg of P/ha) fertilizers in the absence of pesticides, on the other hand,
increased the build-up of the populations and infestation of plants by all the
pests under study. Thus the use of the fertilizers, without the pesticides,
gave non-significant marginal increase in yield over that from the control. For
getting higher yields of mungbean it was found necessary to use pesticides as
well as fertilizers. [AS]
*0652 Gajbhiye, V.T. ; Agnihotri, N.P. ; Jain, H.K. ; Sinha, S.N.
Srivastava, K.P. 1982. Residues of important synthetic pyrethroids In pulse
crops (chick-pea, green gram and black gram). JOURNAL OF ENTOMOLOGICAL
RESEARCH, v.6(2):137-139. [En] [En AbstJ (REP.MB-2646)
Residue of synthetic pyrethroids, viz., permethrin, cypermethrin,
fenvalerate and decamethrin on chickpea (Cicer arietinum Linn.), mungbean
[Vigna radiata (L.) Wilczek.] and blackgram [Vigna mungo (L.) Hepper] were
determined at harvest. In the case of pea crop (Pisum sativum Linn.), residues
were determined in pods and green seeds at different time intervals. The crops
were sprayed at pod formation stage with 0.015% permethrin, 0.0075%
cypermethrin, 0.02% fenvalerate and 0.005% decamethrin. The residues were
determined by gas-liquid chromatography. The straw samples of all the crops
were found to contain excessive residues. Except pea, there was translocation
of insecticide residues in the grains of all the crops, but the level remained
below the prescribed maximum residue limit. There was no translocation of any
insecticide into green peas. [AS]
*0653 Venugopal, M.S. ; Litsinger, J.A. ; Apostol, R.F. 1982. Field
evaluation of insecticide seed treatments for preflowering mungbean insect
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