Hairy fruit weevil
Rhynchites pubescens
Description
Systematic position of this pest is classified within the order Coleoptera and the family Rhynchitidae. The species is characterized by a dense covering of fine, light-colored hairs on its body, which serves as a protective adaptation. This insect is primarily recognized as a specialized pest in warmer climatic regions, significantly affecting the productivity of stone fruit orchards.
Host plants targeted by the hairy fruit weevil are mainly stone fruit trees. Apricots, plums, cherries, and peaches are highly susceptible to its activity. The weevil causes the most damage during the early spring period, directly impacting the buds, blossoms, and developing fruitlets, which can jeopardize the entire potential harvest for the season.
Biology and life cycle involve overwintering as adults in the soil or beneath accumulated leaf litter. As spring temperatures rise, the weevils emerge and move to the trees to feed. Following a period of feeding and mating, females lay eggs into the fruit or buds. Larval development occurs either within the fruit or in the topsoil, where pupation typically takes place before the next adult generation emerges.
Character of damage and harm includes distinct punctures and excavations in buds and flowers, preventing normal development. When attacking young fruit, the female creates openings for oviposition, which often leads to fruit drop and the development of secondary fungal rots. High infestation density leads to significant crop loss and weakened physiological state of the affected trees.
Control measures require an integrated approach focusing on mechanical and chemical methods. Cultural practices, such as autumn and early spring soil cultivation around the tree trunk, help destroy overwintering stages. Chemical intervention is most effective during the pre-blossom stage, using targeted insecticide applications to disrupt the pest's reproductive cycle before significant damage can occur.
Taxonomy
- Latin name
- Rhynchites pubescens
- Order
- Coleoptera (beetles)
- Family
- Attelabidae
Taxonomy and Latin: EPPO Global Database · code RNCHPU
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