Detection and estimation of (Hemiptera: Calophyidae) populations on trees.

R Soc Open Sci

Programa de Pós-Graduação em Planejamento e Uso de Recursos Renováveis, Universidade Federal de São Carlos, 18052-780 Sorocaba, São Paulo, Brazil.

Published: March 2022

is an important pest of in the southeastern and southern regions of Brazil. The objective of the present study was to investigate the effect of the temperature, relative humidity, rainfall and natural enemies on the flight activity of adults and the movement of nymphs, with two sampling methods, yellow sticky traps and direct collections on the leaves of trees. The sex ratio of this pest was also assessed. The number of individuals was negatively correlated with the minimum and maximum temperatures, with a population peak in late May and early June 2017. The numbers of individuals of this psyllid was positively correlated with the relative humidity and rainfall. Larvae and adults of , adults and nymphs and adults preyed upon adults and nymphs on leaves in the field. sex ratio was 0.46. Information about sampling methods of and its natural enemies is presented and can contribute to the integrated management of this pest in the field.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8965397PMC
http://dx.doi.org/10.1098/rsos.211340DOI Listing

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