3种颜色粘虫板对五加肖个木虱诱捕效果

Trapping effects of three different corlour sticky cards to Triozidus acanthopanaicis

五加肖个木虱是危害短梗五加的专食性害虫。作为无公害的防治手段,粘虫板的应用可以有效减少短梗五加的药害残留,还可以预报五加肖个木虱的种群数量动态。使用黄、蓝、绿3种颜色粘虫板在短梗五加田间诱捕五加肖个木虱成虫,结果显示:在第1代成虫期,黄、蓝、绿3种颜色粘虫板对五加肖个木虱的成虫诱捕量分别为每板682.3±35.7头、104.3±9.1头、172.0±15.8头,黄色粘虫板的诱捕量显著大于蓝色和绿色粘虫板的诱捕量;五加肖个木虱成虫在田间7月10日开始出现,之后日诱捕量逐渐增加,7月30日的日诱捕量达到最大,之后开始下降,到9月7日第1代成虫期结束。从7月16日至8月6日,黄色、蓝色、绿色粘虫板的诱捕量之和分别占诱捕总量的86.6%、82.6%、85.3%。在3种颜色粘虫板上,每2 d清除1次成虫时的日诱捕量都小于每8 d清除1次时的日诱捕量,而大于每40 d清除1次成虫时的日诱捕量。

Triozidus acanthopanaicis is a host-specificity pest of Acanthopanax brachypus.As a pollution-free prevention and control method,the application of sticky cards can effectively reduce the residues of pesticides in A.brachypus and can be used to predict the population dynamics of Triozidus acanthopanaicisis.In this study,yellow,blue and green sticky cards were used to trap the adult T.acanthopanaicis in the A.brachypus fields.The results showed that,during the first adult stage,the trapping amounts of the yellow,blue,and green sticky cards were 682.3±35.7,104.3±9.1 and 172.0±15.8 heads per card respectively.The trapping amount of the yellow sticky card was significantly greater than that of blue and green ones;the adult T.acanthopanaicis first appeared in the field on July 10,then daily trapping amounts gradually increased day by day and arrived peak on July 30,then the trapping amount began to decline until September 7 the first adult stage ended.From July 16 to August 6,the trapping amount of yellow,blue and green sticky cards accounted for 86.6%,82.6%and 85.3%of the total trapping amount respectively.From July 7 to August 6,to the three-colored sticky cards,the daily trapping amount of the adults counted every other day was smaller than that of counted every eight days but was larger than that of counted once after 40 days.