The efficacy of mating disruption with Isonet®-T at the rate of 30, 45 or 60 g a.i. ha –1 of sex pheromone to control Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in greenhouse tomato crops was compared with conventional insecticides (flubendiamide, 60 mg L–1 and azadirachtin, 3 g L–1) in winter and summer. In both trials, significantly fewer moths were captured in mating disruption and insecticide-treated plots compared with the control. Differences in male captures between plots disrupted with 60 g a.i. ha –1 of sex pheromone and the insecticide-treated was significant only in summer. In plots disrupted with 60 g a.i. ha –1 of sex pheromone, male captures were significantly reduced by 90% in both trials. No significant differences were found in foliage and fruit damage between plots disrupted with 60 g a.i. ha –1 of sex pheromone and the insecticide-treated. The lower pheromone doses did not achieve a reduction in moth population, foliage, or fruit damage compared with the high pheromone dose or the insecticide treatments. The results suggest that mating disruption applied at high doses could be as effective as insecticides in managing T. absoluta, and could serve as a key component of an IPM program for the pest.

中文翻译：

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与化学杀虫剂相比，在科威特控制 Tuta absoluta（鳞翅目：Gelechiidae）的交配中断效果

将 Isonet®-T 以 30、45 或 60 g ai ha –1 性信息素的比率用于控制温室番茄作物中的 Tuta absoluta（Meyrick）（鳞翅目：Gelechiidae）的交配中断效力与常规杀虫剂（氟虫双酰胺）进行了比较, 60 mg L-1 和印楝素, 3 g L-1) 在冬季和夏季。在这两项试验中，与对照相比，在交配中断和杀虫剂处理的地块中捕获的飞蛾明显减少。用 60 g ai ha –1 性信息素破坏的地块和用杀虫剂处理的地块之间的雄性捕获差异仅在夏季显着。在用 60 g ai ha –1 性信息素干扰的地块中，两项试验中雄性捕获量显着减少了 90%。60 g ai 干扰的地块之间的叶子和果实损害没有发现显着差异 ha –1 的性信息素和杀虫剂处理的。与高剂量的信息素或杀虫剂处理相比，较低的信息素剂量并没有减少飞蛾种群、叶子或果实的损害。结果表明，在管理 T. absoluta 方面，以高剂量应用的交配中断可能与杀虫剂一样有效，并且可以作为有害生物 IPM 计划的关键组成部分。