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对棕榈蓟马在十字花科蔬菜甘蓝上的种群动态进行了系统调查,结果表明从4月中旬至7月下旬棕榈蓟马发生危害有4个高峰期,分别为4月中旬、5月中旬、7月上旬及7月下旬,其中7月上旬为全年最高峰;选用9种杀虫剂对棕榈蓟马进行田间药效试验,结果表明,药后第1天,10%大功臣可湿性粉剂、1.8%爱福丁乳油2、.5%除虫菊素乳油、25 g/L菜喜悬浮剂及0.3%爱禾乳油的防治效果显著高于其它药剂,其防效分别为94.3%,93.1%,81.2%,76.7%和76.7%;药后第3~5 d,所有供试药剂都表现出相对较高的防效,并以25 g/L菜喜悬浮剂防效最好,其次是10%除尽悬浮剂、1.8%爱福丁乳油、10%大功臣可湿性粉剂,其防治效果均在80.6%以上;在供试药剂中,3种生物源农药1.8%爱福丁乳油、2.5%除虫菊素乳油、0.3%爱禾乳油也有较好的防效,是无公害蔬菜生产中防治蓟马的理想药剂.
The population dynamics of Thrips palmi on cruciferous vegetable cabbage was systematically investigated. The results showed that there were four peak occurrences of Thrips palmi from mid-April to the end of July, which were mid-April, mid-May, In early July and late July, the highest peak was observed in the first ten days of July. Nine pesticides were used to test the field efficacy of Thrips palmi. The results showed that on the first day after treatment, 10% , 1.8% avermectin EC, 5% pyrethrin EC, 25 g / L SC and 0.3% Aihe EC were significantly higher than those of other agents with the control effects of 94.3% and 93.1%, respectively. 81.2%, 76.7% and 76.7% respectively. All the tested agents showed relatively high control effect on the 3rd ~ 5th day after treatment, and the best control effect was at 25 g / L Caixiao SC, followed by 10% In addition to the suspension, 1.8% avermectin EC, 10% of the heroic WP, the control effect of more than 80.6%; in the test agents, the three biogenic pesticides 1.8% aphrodine EC, 2.5% pyrethrum Su-EC, 0.3% Ai Wo EC also has good control effect, is pollution-free vegetables in the production of thrips ideal medicine.