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The Asian citrus psyllid (ACP), the principal vector of the pathogen of huanglongbing (HLB), has been reported to be transported in truckloads of oranges in Florida. Citrus, especially Key limes and lemons, are shipped to the U.S. from Mexican states that are heavily infected with HLB. Live, infected psyllids could spread the disease in orchards near inspection facilities or packing houses where trucks are unloaded. Experiments reported here tested the use of a sticky trap with light emitting diode(s) (LED) to detect possible contamination of fruit loads by ACP in containers. Experiments were performed in chambers maintained at temperatures and humidities similar to those in truck trailers arriving from Mexico. The effects of light intensity (no LED, 1 LED, 2 LEDs) and plant material (no material, fruit only, trees and fruit) were measured and analyzed to determine the relative efficacy of the trap types and to the role of plant material in a system to detect the ACP Results showed that ACP could survive in containers with no plant material, fruit only, or a nursery tree as material. The majority of the insects were recovered from the traps with lower psyllid numbers surviving or dying in the container. The traps with 2 LEDs were the most effective, followed by 1 LED traps, then those with no lights. These results showed that the psyllids in these chambers were more likely to be trapped than to survive or die in the chamber. Thus, sticky traps with LEDs as a light attractant can be effective means to detect psyllid contamination in citrus shipping.

the florida entomologist

Evaluation of the Effects of Light Source and Plant Materials on Asian Citrus Psyllid (Hemiptera: Psyllidae) Trapping Levels in the Transtrap for Citrus Shipping Containers