Anatomical indicators of spp. resistance to (Hemiptera: Aphalaridae).

The total area of forest crops in Brazil is 9.55 million hectares, of which 7.5 million hectares are . These crops are the most productive in the world, but may suffer losses due to exotic pests, including Moore (Hemiptera: Aphalaridae) found in Brazil since 2003. Interactions between plants and insect pests may led to the selection of resistant genotypes. species are either susceptible or resistant to this pest group, but the damage they suffer needs to be evaluated. The objective was to determine possible leaf anatomy indicators of different species associated with infestations, focusing on plant resistance to this pest. The study was carried out with , , and saplings infested or not by eggs and nymphs. Eighteen anatomical characteristics of the leaves of these plants were analyzed. The number of stomata on the adaxial and abaxial sides and the glandular area in the central leaf vein are associated with greater or lesser infestation by in the genotypes.