Early evidence of weevil resistance in some clones and hybrids of white pine
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Early evidence of weevil resistance in some clones and hybrids of white pine by Peter W. Garrett

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Published by Northeastern Forest Experiment Station, Forest Service, U. S. Dept. of Agriculture in Upper Darby, Pa .
Written in English


  • White pine,
  • Diseases and pests

Book details:

Edition Notes

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Statement[Peter W. Garrett]
SeriesUSDA forest service research note -- NE-117, USDA Forest Service research note NE -- 117.
ContributionsNortheastern Forest Experiment Station (Radnor, Pa.)
The Physical Object
Pagination4 p. ;
ID Numbers
Open LibraryOL25574045M

Download Early evidence of weevil resistance in some clones and hybrids of white pine


Pissodes strobi, known as the white pine weevil or Engelmann spruce weevil, is the primary weevil attacking and destroying white was described in by William Dandridge Peck, professor of natural history and botany at Harvard weevil is dark brown with white spots and is native to North America. The eggs are laid inside a tree, usually white pine, Sitka Class: Insecta.   Eastern white pine in Maine suffers severe quality damage from the white pine weevil, which causes forked stems and deformed trees. Some trial plantings of western white pine indicate that the western species, and possibly also hybrids between eastern and western white pine, are resistant to weevil attack. This project will evaluate existing Maine plantations of . The white pine weevil (figure 1) - Pissodes strobi (Peck) (Coleoptera: Curculionidae) - is a native insect attacking eastern white pine (Pinus strobus L.).The latest cytogenetic and breeding studies indicate that two other North American pine weevil species - the Sitka spruce weevil and the Engelmann spruce weevil-also should be classified as Pissodes strobi. White Pine Weevil. The white pine weevil is one of the most serious pests of white pine in the area. Feeding damage rarely kills trees but can cause multiple leaders to develop on infested trees as the terminal leader is killed. Feeding injury can also stunt or distort trees. Host Trees. Most seriously attacked: white pine, Norway spruce, and.

ABSTRACT. Resistance to blister rust (Cronartium ribicola Fischer) in white pine (Pinns strobus L.) has been shown by Struckmeyer and Riker () to result from wound periderm formed in advance of the invading mycelium. When indole acetic acid (IAA) was applied to seedling stems of white pine, periderm was also initiated in the cortex of wounded stems. I just found my 2nd to last one on Ebay and bid with three people until the book got to over $ If that isn't love and loyalty I don't know what is. I think Eevil Weevil is fabulous, it was one of my favorites from the series, and he is my favorite character.5/5(11). white pine weevil, Sitka spruce, resistance breeding program. Introduction and Background. White pine weevil (Pissodes strobi. Peck) is one of the most devastating pests of young spruce (Picea. spp.) and pines (Pinus. spp.) in North America. The weevil is a native insect that occurs across Canada and the northern United States. In eastern Author: John N. King, René I. Alfaro, Peter Ott, Lara vanAkker. North America (Entomol. Soc. Am.) is the pine root collar weevil, but it has been referred to in the literature as Scots pine weevil, pine crown weevil, and pine root weevil. Its French name, used in Quebec, is charancon du collet du pin. Figure 1 shows its four live stages-egg, larva, pupa, and adult. F, F, F, F 2.

Most damage caused by a white pine weevil infestation is due to the feeding habits of larvae, which are white with brown head markings. They infest the roots of trees and can lead to the death of the host. Most infested trees wilt, while some grow crookedly or exhibit stem deformation. Reproduction. White pine weevils reproduce only once each year. Other articles where White pine weevil is discussed: pine weevil: The white pine weevil (Pissodes strobi) of North America kills the central growth shoot of white pine trees, forcing one of the side shoots to take over the upward growth of the tree. This results in bends in the tree trunk and reduces its value as. The white pine weevil causes extensive damage to many types of evergreen trees. It is also known as the Engelmann spruce weevil and the Sitka spruce weevil. Adult weevils are about 8 mm inches) long. These beetles are dark brown with white and tan patches on their backs. They have the characteristic and prominent hooked snout of the weevil. The white pine weevil larvae will cause a “shepherd’s crook” before killing the new main terminal leader & side laterals. The new candle growth is capable of extending during the spring months, but by late spring or early summer the feeding larvae will have destroyed much of the water conducting tissues in the previous year’s leader.