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比较了70%吡虫啉水分散粒剂喷雾、花蕾注射和假茎注射等3种施药方式对香蕉蓟马的防治效果。结果表明,花蕾注射防效最高,为86.7%,而喷雾和假茎注射的防效分别为80.2%和78.8%。假茎注射用时最少,每株施药需0.76min,而花蕾注射和喷雾用时分别是其5倍和7倍。假茎注射和花蕾注射用药量较少,较喷雾处理每株可节省药液用量1 610mL和制剂量0.13g。综合考虑,假茎注射是防治香蕉蓟马可行的施药方法。
The control effects of three spraying methods (spraying 70% imidacloprid water dispersible granules, buds and pseudostems) on the banana thrips were compared. The results showed that the bud prevention was the highest, which was 86.7%, while the control effect of spraying and pseudostem injection were 80.2% and 78.8% respectively. Fake stem injection at least, each application 0.76min, while the time spent spraying and spraying their 5 times and 7 times. Pseudostem injection and flower bud injection less dosage, compared with the spray treatment can save liquid medicine 1 610mL and preparation dosage 0.13g. Taken together, the injection of pseudostem is a viable application method for banana thrips.