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Leptoglossus zonatus (Dallas, 1852) - (western leaffooted bug)
This leaf-footed bug is a polyphagous pest in the Americas. For example, it feeds on the flowers and fruits of nut trees like almond, pistachio or physic nut, but also on other types of crops like fruit trees (e.g. citrus, peach), maize, cotton or vegetables. The feeding activities can result in significant damage and up to 30% yield losses have been estimated for pistachio nuts. It often also migrates between crops and other host plants.
The damage to nut crops is similar to that of Leptoglossus clypealis and includes premature fruit drop, especially early in the season, as well as kernel necrosis, black or brown spots on hull or kernel, and/or shrivelled kernels, later in the season (Joyce et al., 2019).
The adult is around 20 mm long, brown with two paler spots on the pronotum and a whitish zigzag band across the corium of the forewings.
|• English:||western leaffooted bug|