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苘麻对甘蓝田烟粉虱诱集效果及药剂防治评价
The trapping effect of piemarker in cabbage fields for Bemisia tabaci and the evaluation of chemical control
【Author】 TAN Yong-An,BAI Li-Xin~*,XIAO Liu-Bin,WEI Shu-Yan,ZHAO Hong-Xia(Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)
【机构】 江苏省农业科学院植物保护研究所;
【摘要】 本文针对烟粉虱Bemisia tabaci在不同寄主苘麻4butilon theophrasti Medic和甘蓝Brassincaoleracea上的嗜好性、趋性、田间种群动态进行了研究,并设计苘麻不同种植方式和配套施药评价苘麻对烟粉虱的诱集防治效果。室内趋性试验结果表明,接虫60h后苘麻上的成虫数是甘蓝上的5.5倍,若虫数为4.7倍。在大田甘蓝生育期内,苘麻对烟粉虱成、若虫的诱集效果分别可达76.8%和60.1%,说明苘麻对烟粉虱具极显著的诱集作用。苘麻不同种植方式诱集烟粉虱的效果结果表明,点状分布种植格局上的烟粉虱成、若虫数量与条状和片状分布种植上烟粉虱数量相比差异显著。配套施药试验结果表明,苘麻喷施10%吡虫啉可湿性粉剂,10%高渗四氟乳油,1.8%阿维菌素乳油,0.3%印楝素乳油,25%阿克泰水分散粒剂5种药剂7d后对烟粉虱成、若虫的防治效果分别为74.38%~94.86%和68.91%~93.29%,以阿克泰和阿维菌素防治效果最好。
【Abstract】 Piemarker Abutilon theophrasti as a trap plant in the integrated management of Bemisia tabaci in cabbage Brassinca oleracea crop was evaluate through preference,tropism,field population dynamics, different planting types and insecticide application.The results indicated that the piemarker plants showed strong attraction to B.tabaci adults and nymphs,when insects observed after 60h among the indoor trend test,the number of adults and nymphs on the piemarker was cabbage 5.5 and 4.7 times,respectively.The effects of trapping to B.tabaci adults and nymphs were 76.8%and 60.1%through the entire cabbage growth period in field,respectively,.There was significant difference between different planting types for trapping B.tabaci adults and nymphs,the attractive efficiency from single-planting piemarker was much more as compared to the planting types of the strip-planting and plot-planting.The insecticide application of 10%imidacloprid WP,10%hypertonic EC,1.8%avermectin EC,0.3%azadirachtin EC,and 25%thiamethoxam WDG on piemarker plants,showed different control effects on B.tabaci in cabbage fields.The control efficiency ranged from 74.38%~94.86%for the adult and 68.91%~93.29%for the nymphs respectively.Among the insecticides tested,thiamethoxam and avermectin gave the best results in term s of maximum mortality of this pest in cabbage crops.
【Key words】 Bemisia tabaci; Piemarker; Cabbage; Trap plant; Prevention and control;
- 【会议录名称】 纪念江苏省昆虫学会九十周年论文集粹
- 【会议名称】纪念江苏省昆虫学会成立九十周年学术报告会
- 【会议时间】2010-12-14
- 【会议地点】中国江苏南京
- 【分类号】S433.3
- 【主办单位】江苏省昆虫学会