Study on the control of Agrobacterium tumefaciens
luo wei de1; yang jin lan2; yang yong qi3 (1.plant protection station of beijing city; beijing 100029; china; 2.scientific committee of pinggu district in beijing city; beijing pinggu 101207; china; 3.agro tech extension station of dahuashan in pinggu; pinggu dahuashan 101207; china)
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Main invasive alien weeds in China and their control measures
cao ao cheng1; guo mei xia1; zhang xiang cai1; tian yu2; lu ping xiang2; bai ya nan2; zhang qing2 (1 institute of plant protection; chinese academy of agricultural sciences; beijing 100094; china; 2 department of plant protection; jilin agricultural university; jilin changchun 130118; china)
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Occurring rules of Bemisia tabaci in Xuzhou area and its control measures
dai shuan shan1; liu zong quan1; du yu zhou2; zhou fu cai2; zhang gui yong3; gao su lan1; qiu bao hua1; li jian shu3; li yan hong1 (1.plant protection station of fengxian county in jiangsu province; jiangsu fengxian 221700; china; 2.dept. of plant protection; agric. college; yangzhou university; jiangsu yangzhou 225009; china; 3.meteorogical bureau of fengxian county in jiangsu province; jiangsu fengxian 221700; china)
..............page:16-19