The Effect of Some Site Factors on the Abundance of Hypomolyx Piceus (Coleoptera: Curculionidae)

Warren, G. L.

doi:10.2307/1929676

Cited by 17 publications

(21 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absence of H. piceus from the pitfall trap catches suggests that the species avoid logged or burned areas. This is compatible with observations that it seems to prefer moist sites (Warren, 1956). In general, H. piceus is much less abundant than H. abietis and H. pinastri (Långström, 1982), and it is thus possible that it may be of no importance as a pest, at least on dry planting sites.…”

Section: Catches Of H Pinastri and H Piceussupporting

confidence: 87%

Effects of controlled forest burning and intensity of timber harvesting on the occurrence of pine weevils, Hylobius spp., in regeneration areas

Pitkänen

Kouki

Viiri³

et al. 2008

Forest Ecology and Management

View full text Add to dashboard Cite

Section: Catches Of H Pinastri and H Piceussupporting

confidence: 87%

Effects of controlled forest burning and intensity of timber harvesting on the occurrence of pine weevils, Hylobius spp., in regeneration areas

Pitkänen

Kouki

Viiri³

et al. 2008

Forest Ecology and Management

View full text Add to dashboard Cite

“…Adult weevils have a body length of 11.7Ð15.1 mm and are ßightless. They are primarily active at night, when they ascend trees at dusk to feed on the branches, bark, and/or needles of coniferous trees (Warren 1956(Warren , 1966. Adult Warren root collar weevils overwinter within the top few centimeters of duff layer surface on the forest ßoor (Cerezke 1994).…”

mentioning

confidence: 99%

“…Developing larvae feed on the phloem around the hostÕs large lateral roots and/or the root collar. As the insects mature, their feeding galleries become deeper, and they may score the xylem tissues (Warren 1956, Cerezke 1994. In British Columbia, the weevilÕs primary host is lodgepole pine, Pinus contorta variety latifolia, although they feed on a variety of hosts in the Pinaceae family including species of Pinus, Picea, Abies, Larix, and Tsuga (Warren 1956, Wood 1957, Whitney 1961, Grant 1966, Wood and Van Sickle 1989, Cerezke 1994, Hopkins et al 2009).…”

mentioning

confidence: 99%

Dispersal of Warren Root Collar Weevils (Coleoptera: Curculionidae) in Three Types of Habitat

et al. 2012

View full text Add to dashboard Cite

Warren root collar weevil, Hylobius warreni Wood, is a native, flightless insect distributed throughout the boreal forest of North America. It is an emerging problem in young plantings of lodgepole pine, Pinus contorta variety latifolia, in western Canada, where larval feeding can kill young trees by girdling the root collar. Susceptible plantings are becoming more abundant following salvage harvesting and replanting activities in the wake of an ongoing epidemic of mountain pine beetle, Dendroctonus ponderosae (Hopkins). Previous studies using mark-trap-recapture methods found that movement rates of adult H. warreni were elevated in areas with high numbers of dead trees, consistent with a hypothesis that the insects immigrate from stands with high mountain pine beetle-caused tree mortality to young plantings in search of live hosts. Sampling methods were necessarily biased to insects captured in traps; however, potentially missing individuals that had died, left the study area, or simply remained stationary. Here, we used harmonic radar to examine weevil movement in three different habitats: open field, forest edge, and within a forest. We were able to reliably monitor all but two of 36 insects initially released, over 96 h (4 d). Weevils released in the open field had the highest rates of movement, followed by weevils released at the forest edge, then weevils released within the forest. Movement declined with decreasing ambient air temperature. Our results suggest that weevils tend to be relatively stationary in areas of live hosts, and hence may concentrate in a suitable area once such habitat is found.

show abstract

“…For other conifer-infesting weevils, such as H. radicis , the silvicultural control also strongly reduces weevil damage ( Maxwell & Stewart, 1962;Wilson, 1973 ). Similar results were observed on H. warreni by Warren (1956) and on Hylobius abietis by Nystrand & Granstrom (2000) and Orlander & Nilsson (1999 ). It can be concluded that heavily infested slash plantations should be treated by the removal of branches, duff, vegetation and soil around the base of trees.…”

Section: Discussionmentioning

confidence: 70%

“…This was effective because it virtually eliminated the weevil habitat surrounding the root collar. Warren (1956) found that Hylobius warreni Wood was also controlled by removing the humus from the vicinity of the root collar and basal portions of the major roots. It was proposed that the humus layer was necessary in providing high humidity for this species.…”

Section: Introductionmentioning

confidence: 99%

Effect of pruning and ground treatments on the populations of Hylobitelus xiaoi Zhang, a new debarking weevil in slash pine plantations

Wen¹,

Ming-qing²,

Zhu³

et al. 2006

Agri and Forest Entomology

View full text Add to dashboard Cite

1 Adults of Hylobilus xiaoi Zhang spend the daylight hours in bark crevices of lower stem or shallow cracks in the soil near the base of the host. Adults are both thermophobic and photophobic. 2 Pruning the lower whorls of slash pine branches and removing duff and scraping soil around the tree base modified the adult habitat. 3 Both adult and larval abundance was inversely related to intensity of treatment, suggesting that the greater exposure to light or heat, or both, at the tree base, the less favourable was the habitat to the insect. 4 It was concluded that branch pruning together with duff removal and ground scarification was the best silvicultural approoach to reduce weevil abundance.

show abstract

The Effect of Some Site Factors on the Abundance of Hypomolyx Piceus (Coleoptera: Curculionidae)

Cited by 17 publications

References 4 publications

Effects of controlled forest burning and intensity of timber harvesting on the occurrence of pine weevils, Hylobius spp., in regeneration areas

Effects of controlled forest burning and intensity of timber harvesting on the occurrence of pine weevils, Hylobius spp., in regeneration areas

Dispersal of Warren Root Collar Weevils (Coleoptera: Curculionidae) in Three Types of Habitat

Effect of pruning and ground treatments on the populations of Hylobitelus xiaoi Zhang, a new debarking weevil in slash pine plantations

Contact Info

Product

Resources

About