Claim · model-written summary
A seedling root dip of chlorpyrifos or isofenphos followed by ethoprophos granules decreased the incidence of rice gall midge to 5.1% silver shoots at Chiplima, India.
Verbatim
e0“the rice gall midge, Orseolia oryzae”
e1“A seedling root dip of either chlorpyrifos or isofenphos at 0.02% a.i. for 12 h, followed by one application of ethoprophos granules at 1 kg a.i./ha 30 d.a.t. gave good control of the midge, with an average incidence of only 5.1% silver shoots, and a yield of 3935 and 3840 kg/ha of paddy rice in 1980 and 1981 respectively”
e2“Field trials were carried out at Chiplima, India during the wet seasons of 1980 and 1981”
Title
Effects of insecticides on the rice gall midge,Orseolia oryzaeand its parasite,Platygaster oryzae
A. P. Samalo; P. B. Parida; G. C. Mishra Tropical Pest Management 1983. doi:10.1080/09670878309370794
Other claims from this paper (4)
- Observation Paddy rice under the seedling root dip and ethoprophos treatment yielded 3935 and 3840 kg/ha in 1980 and 1981.
- Association Granular carbofuran, isofenphos, phorate and quinalphos were almost as effective against the rice gall midge as the seedling root dip.
- Association Insecticidal treatment in general had very little effect on the parasitoid Platygaster oryzae.
- Association Granular isofenphos was the least toxic insecticide to Platygaster oryzae, permitting 22.8 to 32.7% parasitisation at 50 days after transplanting.