See what the research says when it comes to managing Asian citrus psyllids in citrus groves in Florida and in “protected structures.”
“Although there is no permanent solution for HLB yet, psyllid suppression reduces its impact,” shared a UF/IFAS Tip of the Week article; research has shown there is still a payoff for reducing Asian citrus psyllid (ACP) populations even though the citrus greening disease the insects spread is endemic in Florida. The article goes on to share tips for managing Asian citrus psyllids in citrus groves and protected structures like individual protective covers (IPCs) and citrus under protective screen (CUPS). See the details below.
Management Tips for Asian Citrus Psyllids in Citrus
The article shared the following tips for managing Asian citrus psyllids in citrus, based on research results:
- “Chemical control is the most implemented method. Its strategic use helps reduce psyllid resistance and collateral damage to non-target organisms, including beneficial organisms needed for managing a wide range of pests.”
- “Targeting overwintering psyllid adults with an insecticide spray before the spring flush reduces psyllids and HLB multiplication and spread.”
- “Additional sprays in the growing season can be adjusted to target psyllids slightly before or during the flush cycles with rotation of insecticide mode of action.”
- “UF/IFAS research indicated higher densities of psyllids in the block perimeter than in the interior. Therefore, implementing sprays in the perimeter and sparing the interior will not only kill psyllids but also provide refuge for biological control and opportunity to reduce insecticide use and cost.”
- “Predators and parasitoids targeting psyllids and several other pests of citrus warrant conservation and augmentation to support integrated and sustainable pest management.”
- “Trees can be planted under individual protective covers to protect them from psyllids and HLB for two to three years or through production in citrus under protective screen (CUPS). Other pests such as scales, mites, mealybugs, thrips and leafminers have been observed in these protected structures. Therefore, monitoring and targeted chemical treatments may be needed.”
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