石楠上白粉虱的药剂防治试验研究

Study on the Insecticides Control of Trialeurodes Vapororiorum in Photinia Serrulata

试验用3%呋喃丹颗粒剂和40%氧化乐果乳油进行根施,10%吡虫啉可湿性粉剂、25%绿富隆乳油和20%氰戊菊酯乳油进行叶面喷雾防治石楠上的白粉虱成虫。结果表明:用20%氰戊菊酯2 000倍液和25%绿富隆2 500倍液叶面喷雾防效最好,其平均校正防效分别达100%和97.28%;其次为10%吡虫啉可湿性粉剂2 000倍液叶面喷雾和40%氧化乐果15 ml/株根施。

Two kinds of insecticides （3% granular of Carbofuran and 40% Omethoate EC） were selected to the root of photinia serrulata, three kinds of insecticides （10% Imidacloprid WP,25 % xh- 100 Saoshem imidaclopfid EC and 20% Fenvalerate EC） was sprayed respectively on the leaves to control tralerodes vaporriorum in photlnia serrulata. The results showed that the effect was the best when 20% Fenvalerate EC 2000=fold or 25 % xh-100 Saoshem imidacloprid EC 2500-fold was sprayed on the leaves, and their average adjusting effect reached to 100% and 97.28 % respectively. While the less effective way was 15 ml 40% Omethoate EC being used on the root and 10% Imidacloprid WP sprayed on the leaves.