CONCLUSION:The drug instruction database suits clinic actuality and it helps to improve the quality of drug treatment and level of rational use of drugs,thus deserving to be generalized.
A survey on the susceptibility of brown planthopper collected fromdifferent areas of Zhejiang province to γBHC,malathion and parathionwas tested by topical application in 1977.The data obtained showedthat resistance of brown planthopper to γBHC and malathion appearedin paddy rice fields between June and early July in the areas of thisprovince was 2.4~6.8 and 3 times respectively in comparison with thatof Wucun Juxian County.The autumnal generation was 4.7-fold resistantto γBHC as compared with LD_(50) of th...
Buzura suppressaria Guence, the tung-oil tree geometrid, is an important defoliator of Aleuritis fordii and many other farm crops, prevailing in the Southern provinces in China. Based on the insectary toxicity tests and field experiments on prevention and control effect, 3 pesticides, Dichlorvos, Sumicidin and Decamethrin have been selected from 8 chemicals as having comparatively high toxicity to the larvae.
Aphis gossypii were collected from cotton fields with low insecticide use and pro-pagated on cotton seedlings grown under hydroponics. The offsprings of the aphids wereselected with fenvalerate, omethoate, and mixture of fenvalearte-omethoate(1:8 AI) byimmersion method. Up to 16 generations, resistance of fenvalerate selected populationwas as high as 4324.4 and the other two populations were 22.3 and 16.5 fold respecti-rely. The above mentioned 3 selected populations showed significant or high level ofcross...