Mites associated with ambrosia and bark beetles (Curculionidae: Scolytinae) in avocado orchards in Michoacan, Mexico

Year 2019, Volume: 1 Issue: 2, 174 - 175, 31.07.2019

Estefanni N. Sandoval-cornejo Edith G. Estrada-venegas , Armando Equıhua-martínez Jesús Romero-nápoles Dionicio Alvarado-rosales

Abstract

Avocado is one
of the most important crops in Mexico. To investigate mite species associated
with ambrosia and bark beetles in avocado plantations, three study sites with
different management and crop conditions were selected in the state of
Michoacan. Orchards were checked for trunks infested with ambrosia and bark
beetles during 2017. In the laboratory, avocado trunks were placed in emergence
chambers, and insects and mites collected, mounted and identified. Four species
of Scolytinae were found associated with avocado trunks; three ambrosia beetle
species, namely Monarthrum exornatum,
M. frimbriaticorne and Dryocoetoides capucinus, and one bark
beetle, Phloeocleptus plagiatus. Monarthrum fimbriaticorne was the most
common beetle found at the three sites. The seven mite species collected
belonged to 6 genera, Proctolaelaps,
Trichouropoda, Mexecheles, Eutogenes,
Elattoma and Tyrophagus. Elattoma
abeskoun was the most abundant species in this study. These results
represent the first report in the country on mites associated with ambrosia and
bark beetles in avocado orchards.

Keywords

Persea americana, Acari, Scolytinae, association

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