The efficacy of commercially available chemical insecticides and biopesticides on the cotton mealybug (CMB), Phenacoccus solenopsis, was evaluated in the glasshouse. Spirotetramat, sulfoxaflor and buprofezin were identified as key insecticides for use in integrated pest management (IPM) strategies aimed at controlling CMB without flaring other co‐occurring pests. When used as a single application, spirotetramat and sulfoxaflor at the rate of 96 g (active ingredient, ha⁻¹) provided variable control of CMB. Spirotetramat used in a double spray tactic (two sequential sprays, 14–15 days apart) without crop oil provided ≥80% control of adult CMB while the addition of oil (5% v/v) increased control to ≥90%. Clothianidin synergised the spirotetramat + oil combination and was identified as a potentially useful tank mix option for use in situations where a quick knockdown of high density and/or large infestation of CMB is required, or to treat high risk infestations in squaring or younger cotton when the abundance of beneficial insects is typically low. Sulfoxaflor used in a double spray tactic provided ≥90% control of adult CMB. The addition of Pulse® penetrant (0.5% v/v) to both options improved overall efficacy. Addition of crop oil to sulfoxaflor did not yield any tangible benefits. Spirotetramat and buprofezin were identified as important tools in managing situations where whitefly (Bemisia tabaci) is the primary pest management target, but CMB is also present in the crop. Buprofezin was effective on early instar mealybugs; this makes it an option for arresting CMB population growth while allowing the beneficial insect populations to increase. Sulfoxaflor was shown to be a useful option in situations where CMB is present along with key pests such as mirids (Creontiades spp.). Mealybugs are typically well controlled by naturally occurring beneficial insects without the need for insecticide use. Chemical insecticides for CMB control should be considered only as a last resort and deployed within the bounds of an IPM strategy.

中文翻译：

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澳大利亚棉粉虱病菌Phenacoccus solenopsis（Hemiptera：Pseudococcidae）的化学防治：温室评估杀虫剂的功效

在温室中评估了市售化学杀虫剂和生物农药对棉粉虱（Phenacoccus solenopsis）的功效。Spirotetramat，磺胺嘧啶和丁苯丙酸被确定为主要害虫，可用于旨在控制CMB而不引起其他共生害虫的病虫害综合治理（IPM）策略。当单独使用时，螺旋藻和磺胺地那非的用量为96 g（活性成分，ha ^-1）提供了CMB的变量控制。在没有农用油脂的情况下，双喷雾策略（两次连续喷雾，间隔14-15天）中使用的Spirotetramat提供了对成年CMB≥80％的控制，而添加油脂（5％v / v）使对CMB的控制提高到≥90％。Clothianidin可协同螺旋藻+油组合，被认为是潜在有用的桶混选择，可用于需要快速击倒高密度和/或CMB大量侵染的情况，或用于处理在平方或更年轻棉花中的高风险侵染的情况有益昆虫的数量通常较低。在双喷雾策略中使用的磺胺丁香可控制成人CMB≥90％。在这两种选择中均添加Pulse®渗透剂（0.5％v / v），可提高整体功效。将农作物油添加到磺胺丁香中没有产生任何明显的好处。烟粉虱（Bemisia tabaci）是主要的害虫防治目标，但作物中也存在CMB。丁苯丙酸对早期幼龄粉虱有效。这使得它可以阻止CMB种群增长，同时允许有益昆虫种群增加。在存在CMB以及主要害虫（例如mi虫（Creontiades spp。））的情况下，Sulfoxaflor被证明是一种有用的选择。食虫通常可以通过天然存在的有益昆虫得到很好的控制，而无需使用杀虫剂。用于CMB控制的化学杀虫剂仅应作为最后的手段，并应在IPM策略的范围内部署。