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.
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http://dx.doi.org/10.7717/peerj.13346 | DOI Listing |
Insects
September 2024
Faculty of Agricultural, Environmental and Food Sciences, Free University of Bozen-Bolzano, 39100 Bolzano, Italy.
Braz J Microbiol
December 2024
Departamento de Proteção Vegetal, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista (UNESP), Avenida Universitária, 3780, Botucatu, São Paulo, 18610-034, Brasil.
Eucalyptus is the most intensively managed tree genus in the world. Different factors, including damage by insect pests, affect its growth and productivity. Among these pests is Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae), an exotic insect of Australian origin.
View Article and Find Full Text PDFIntraspecific hybridization between distinct populations could increase the fitness and adaptive potential of biological control agents that often have low genetic diversity and can be inbred due to long-term laboratory rearing often at small population sizes. Hybridization can also alter host preference and performance when the parental insect populations are adapted to different host plants. We investigated the effects of hybridization between two populations (Northern and Southern) of the psyllid, , that have different fitness on three invasive knotweed species (Japanese, giant, and Bohemian).
View Article and Find Full Text PDFZootaxa
October 2023
Florida State Collection of Arthropods; Florida Department of Agriculture and Consumer Services; P. O. Box 147100; Gainesville; FL 32614-7100; USA.
The Florida State Collection of Arthropods (FSCA) is one of the largest and most diverse insect collections in North America and the largest in the southeastern United States with over twelve million curated specimens and significant amounts of materials in bulk collections and other unprocessed samples. The order Hemiptera currently comprises approximately 95,000 species in three suborders. The FSCA houses type material in the auchenorrhynchan families Cicadidae, Cicadellidae, Cixiidae, Delphacidae, Derbidae, and Membracidae; the heteropteran families Coreidae, Corixidae, Curaliidae, Lygaeidae, Miridae, Pentatomidae, Reduviidae, Schizopteridae, Scutelleridae, and Tingidae; the sternorrhynchan families Aleyrodidae, Aphalaridae, Aphididae, Coccidae, Diaspididae, Matsucoccidae, Pseudococcidae, Phacopteronidae, and Triozidae.
View Article and Find Full Text PDFMol Phylogenet Evol
December 2023
State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
Psyllids (class Insecta: order Hemiptera: superfamily Psylloidea) are a taxonomically and phylogenetically challenging clade. Recent studies have largely advanced the phylogeny of this group, yet the family-level relationships among Aphalaridae, Carsidaridae, and others remain unresolved. Genome-scale phylogenetic analysis is known to provide a finer resolution for problems like that.
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