PNABD246.pdf

crop. [THH]
*0719 Chelliah, S. ; Balasubramanian, G. ; Surulivelu, T. ; Menon, P.P.V.
1977. Chemical control of blackgram pod borers. MADRAS AGRICULTURAL JOURNAL,
v.64(9):628-629. [EnJ (REP.MB-1985)
A field experiment was conducted to test certain insecticides in
controlling pod borers of blackgram. A connon spray with monocrotophos 0.04%
was given at the flowering stage except for the check. Pod borer infestation
between treatments was significantly different and damage on a pod basis ranged
from 9.6 to 15.1% in insecticide treated plots while it was 32.9% in the
untreated. Among the insecticides tested, aldicarb was outstanding, followed by
disulfoton and phorate. The seed treatment with carbofuran was next best to the
three granular insecticides applied in soil. There were 65.2, 64.0 and 60.1%
increases in grain yield in aldicarb, phorate and disulfoton treatments
respectively over the check. Application of either aldicarb, phorate or
disulfoton at 1 kg a.i./ha at seeding followed by spraying with monocrotophos
0.04% at flowering stage will he an effective schedule for pod borer control on
blackgram. [THH]
*0720 Litsinger, J.A. ; Bandong, J.P. ; Paragna, F. 1980. Field evaluation
of foliar insecticides for postflowering mung bean insects, Pangasinan,
Philippines 1977-78. INSECTICIDE AND ACARICIDE TESTS, v.5:137-138. [Enj
(REP.MB-2662)
Two trials on farmers' fields in Poo, Manaoag, Pangasinan evaluated 15
foliar insecticides against postflowering insects, predominantly Heliothis on
mungbean. The impact of Heliothis on mungbean infestation was measured as %
defoliation (visual estimate/plot), no. larvae (50 plants), % damaged green and
dry pods (100 pods), and no. pods/plant (25 plants). Yield was based on 15
sq.m. Decis (0.05 kg a.i./ha) was outstanding for the control of Heliothis on
mungbean applied either twice (30 and 42 DE) or three times (30, 40, and 55
DE). Also effective were fenvalerate, methomyl, acephate, monocrotophos, and
carbaryl, but endosulfan, cartap, malathion, and diazinon did not control
Heliothis on mungbean at 0.75 kg a.i./ha. [AS/NST]
*0721 Yein, B.R. ; Singh, Harcharan 1980. Effects of pesticides and
fertilizers on the population of jassids on greengram. JOURNAL OF RESEARCH
(PUNJAB AGRICULTURAL UNIVERSITY), v.17(4):383-387. [EnJ [En AbstJ
(REP.MB-2901)
The sprays of endosulfan (0.12 kg a.i./ha) and seed treatment with captan
(0.04 kg a.i./ha) were ineffective in controlling jassids (Amrasca biguttula
Ishida and Batrachomorphus sp.) on mungbean. The soil application of aldicarb @
1.5 kg a.i./ha, on the other hand, proved to be most promising in reducing the
population of the pests as compared with that in the control. This treatment
gave the maximum reduction (64 to 83% of the pests in the early stages, i.e.,
to 6 weeks after sowing the crop. The efficacy of the insecticide decreased
with the lapse of time. The application of nitrogenous (12.5 kg of N/ha) and
phosphatic (40 kg of P/ha) fertilizers in the absence of insecticides
encouraged the build-up of the population of the pests. Thus the application of
nitrogenous and phospihatic fertilizers without the use of pesticides gave
nonsignificant marginal increases or even decreases in the yield as compared
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