Abstract
Acephate (Orthene) cartridges spaced 14 cm apart along the stem circumference, implanted in November as a preventive treatment in 18-year-old pine trees, resulted in 100% mortality of young larvae of the pine processionary caterpillar,Thaumetopoea wilkinsoni Tams. A spacing of 10 cm was required to achieve 100% mortality of 3rd and 4th instar larvae. When implants were done in January, a spacing of 6 cm for control of the 4th and 5th instar larvae was needed.
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References
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Halperin, J. Acephate implants for control of the pine processionary caterpillar. Phytoparasitica 14, 97–100 (1986). https://doi.org/10.1007/BF02980895
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DOI: https://doi.org/10.1007/BF02980895