PNABD246.pdf

found to reach the tolerance level of 0.01 ppm in 0.17, 1.26 and 2.51 days
respectively, while the residues reached the lowest level of detectability in
1.78, 2.88 and 4.78 days, respectively. Only half a minute washing of samples
of fumigated pulses collected zero day after aeration resulted in reduction of
residues to 0.002-0.005 ppm indicating thereby that if washing of grains can be
assured, the commodities can be released to consumers immediately after
exposure period is over. Normal cooking/boiling (15-20 min) also readily
removed phosphine residues below the detectable level. Since none of these
pulses are eaten raw and are often subjected to prior cooking/boiling before
consumption, they may be consumed even immediately after exposure period is
over. Phosphine fumigation did not impair the germination of mungbean, cowpea
and pea seeds, even in case of fumigation with excess dosages of 4 and 8
tablets/ton. [AS/NSTJ
*0656 Talekar, N.S. ; Chen, B.S. 1983. Seasonality of insect pests of
soybean and mungbean in Taiwan. JOURNAL OF ECONOMIC ENTOMOLOGY,
v.76(1):34-37. [Eni [En Abst] (AVRDC/JP/76) (REP.MB-2359)
Seasonality of various insect pests of soybean and mungbean was studied by
planting the host plants once every 2 weeks over 6 years. The beanfly,
Ophiomyla phaseoli (Tryon), and two other agromyzids, Melangromyza sojae
(Zehntner) and 0. centrosematis de Meijere, although they occur throughout the
year, only cause severe damage during the autumn season. The southern green
stink bug, Nezara viridula (L), infests soybean and mungbean between May and
October; Anomala cupripes Hope and A. expansa Bates occur from mid-April
through OcLober; and limabean podborer, Etiella zinckenella (Treitschke),
remains active between September and May. Aphis glycines Matsumura infests
soybeans mainly during October through March, the cooler time of the year. [AS]
*0657 Verma, A.N. ; Bhanot, J.P. ; Khurana, A.D. 1983. Effect of pre-sowing
soil application of BHC and aldrin on plant stand in wheat and moong. HARYANA
AGRICULTURAL UNIVERSITY JOURNAL OF RESEARCH, v.13(i):150-152. [En] [En Abst]
(REP.MB-2633)
Repeated applications of insecticides to the same field may result in their
accumulation to rather undesirable high levels, which may interfere with the
germination and plant stand of the crops sown therein. A study on the effect of
pre-sowing soil application of BHC and aldrin on plant stand in wheat and
mungbean was conducted. The results revealed that pre-sowing soil application
of aldrin dust at doses as high as 125 kg a.i./ha did not adversely effect the
plant stand in wheat but at 50 kg a.i./ha considerable reduction in the stand
of mungbean plants was observed. The high doses of soil applied BHC dust, 50 kg
a.i./ha for mungbean and 100 kg a.i./ha for wheat, resulted in considerable
reduction in the stand of both wheat and mungbean. [THH]
*0658 Dhuri, A.V. ; Singh, K.M. ; Singh, R.N. 1984. Incidence of insect
pests in black gram Vigna mungo (L.) Hepper. INDIAN JOURNAL OF ENTOMOLOGY,
v.46(3):270-276. [EnJ [En Abstj (REP.MB-2871)
Fairly high mean ambient temperature around 30-32 C seems to be most
conducive in the population build up of various insect pests of blackgram. High
temperature that prevails during summer season contributes to decline in the
pest incidence, whereas scattered rains followed by fairly high relative
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