Many adult pine weevils can emerge from a single stump and associated root system, resulting in populations as high as 100,000 adults per hectare. There were a total of 12 VC55 records for this species up to March 2015. Adults can live up to four years. Felling a coniferous crop produces a large increase in breeding material for the pine weevil, whilst plant material suitable for adult feeding is reduced. This is a preview of subscription content, log in to check access. Development and life cycle in the Nordic countries. Studies onHylobius abietis L. I. The large pine weevil (Hylobius abietis) can cause very substantial tree plant mortality in reforestation sites.Felling a coniferous crop produces a large increase in breeding material for the pine weevil, whilst plant material suitable for adult feeding is reduced. 6 weeks, so predicting the optimum time of application is critical. This large weevil (10 -13mm) has orange or creamy-yellow bands on the elytra across a dark background. Learn more about Institutional subscriptions, You can also search for this author in Most will feed on adjacent mature trees or on weed species on site, but heavy feeding damage on trees planted on reforestation sites is also very likely. Pine weevil Hylobius abietis is the most dangerous pest of restock areas. They may attack at any time of year when it is warm enough for insect activity. This damage can prevent the young tree growing. Development and life cycle in the Nordic countries. Tax calculation will be finalised during checkout. Recording the wildlife of Leicestershire and Rutland. Although it is widespread throughout Britain, it is rather local, with populations being dependant on the food plant being available in numbers. It is therefore necessary to protect the plants directly through dipping and/or spraying with the insecticide Cypermethrin. Hylobius abietis, the Pine weevil, Large pine weevil, and spruce weevil . Sample at least five stumps. Most pine weevil feeding occurs between early March and November. The period during which plants remain vulnerable to damage varies considerably, depending on plant size and species as well as insect populations. Michael G. Moran ABSTRACT Hylobius abietis (Coleoptera: Curculionidae), the large pine weevil is the most damaging pest of reforestation sites in Ireland. Studies onHylobius abietis L. I. 1.1 Life cycle of Hylobius abietis The length of the life cycle of H. abietis is dependent on different factors. Life History. Click here to support NatureSpot by making a donation - small or large - your gift is very much appreciated. The following relationships have been collated from the published literature (see 'References'). Typically, after two growing seasons, Sitka spruce will no longer be susceptible to damage. Remove bark from the cleared area using a wood chisel. Enter a town or village to see local records, Yellow squares = NBN records (all known data) Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015, Leicestershire Amphibian & Reptile Network, Market Bosworth & District Natural History Society, Natural History Section, Leicester Literary & Philosophical Society, Leicestershire & Rutland Swift Partnership. Thank you. It is important to note that the knapsack application of Cypermethrin is only effective for approx. Heavy damage can completely girdle stems and cause plant death. Large Pine Weevil. FIELD ENHANCEMENT OF THE PARASITOID Bracon hylobii (Hymenoptera: Braconidae) TO CONTROL Hylobius abietis (Coleoptera: Curculionidae); THE LARGE PINE WEEVIL. The timing of these feeding periods depends on both the physiological condition of the insects and the ambient temperature.