Effect of furatiocarb, diazinon and chlorofenvinfos as a seed treatment to bean flies Ophiomyia phaseoli Tryon and Melanagromyza sojae Zehutner on soybean
1988
Harnoto
Two of the factors that reduced soybean yield production were pests and diseases. In the early stage, bean flies Ophiomya phaseoli Tryon and Melanagromyza sojae Zehutner attacked soybean plant. Up to now insecticides are used to control these insect pests mainly liquid formulation. The objective of this trial was to evaluate the effect of furatiocarb, diazinon and chlorofenvinfos as a seed treatment to both bean flies O. phaseoli or M. sojae. Each insecticide was tested in three dosages at Brebes (Central Java) in dry season 1984. Each insecticide was mixed with soybean seed in dry condition. The effectiveness of these insecticides were compared to monocrotophos as a standard insecticide and untreated as check. Randomized block was used in this trial, and each treatment was repeated three times. Plot size was 8m x 5m, and planting distance was 40 cm x 20 cm. Genjah Slawi a local variety was used, with fertilizer application as follows: 50 kg N + 75 kg P2O5 + 5 kg K2O/ha at sowing time. Furatiocarb, diazinon and chlorofenvinfos were effective in controlling larva of bean flies O. phaseoli and M. sojae. Plot treated by furatiocarb, diazinon and chlorofenvinfos increased yield production compared to untreated. Eight g a.i. of furatiocarb, 12 g a.i. of diazinon and 1.5-3 g a.i./kg seed have tendency to reduce the germination of soybean seed.
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