Pine-plantation-pest
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Pachylobius picivorus
pitch-eating weevil, pitch eating weevil
Pachylobius picivorus, commonly known as the pitch-eating weevil, is a pine root-feeding weevil native to North America. The species is an economically significant pest of natural and planted pine seedlings, with brood development requiring 100–128 days during summer. Adults are long-lived and oviposit continuously at approximately 0.7 eggs per day per female throughout their lifespan. Populations exhibit two annual peaks in the Georgia Piedmont, driven by temperature and developmental cycles. Behavioral studies indicate the species responds strongly to olfactory cues, particularly ethanol and turpentine mixtures, though visual cues are less important for host location than in related species such as Hylobius pales.
pine-weevilroot-feeding-weevilforestry-pestPinus-pestCurculionidaeNorth-AmericaGeorgia-Piedmonttrap-response-behaviorethanol-turpentine-responsepine-seedling-damagelong-lived-adultcontinuous-ovipositionpopulation-peakssummer-brood-developmentolfactory-cue-responsevisual-cue-secondaryTedders-trapmodified-Tilles-trapeconomic-pestforest-regeneration-pestlarval-root-feedingpine-plantation-pestbehavioral-ecologyhost-finding-behaviorground-dwelling-weevilPachylobiusMolytinaePissodiniSabulodes
Sabulodes is a genus of geometrid moths (Geometridae: Ennominae) first described by Achille Guenée in 1857. The genus contains approximately 50 described species distributed primarily in the Americas, with some species occurring in the Neotropics. Several species have been documented as forest defoliators, including Sabulodes glaucularia, which has been reported as a pest of Pinus patula, Cupressus lusitanica, and Eucalyptus in Colombian forests. The genus is taxonomically well-established but individual species-level biology remains incompletely documented.