Introduction In fall, while preparing for winter dormancy, many plants shed their leaves in a burst of color. During this period, certain tree insects can be easily identified. The following…
Introduction Oak leaf gall mite (Pyemotes herfsi), also known as itch mite, is an ectoparasitic insect in the genus Pyemotes. It is a secondary invader of oak trees that parasitizes…
Introduction Spruce spider mite (Oligonychus ununguis) is a small pest that infests numerous conifers. The insect is native to North America. It is one of the most destructive spider mites…
Introduction Knopper gall wasp (Andricus quercuscalicis) is a gall wasp species that infests two types of oak trees: common oak, and turkey oak. The word knopper is derived from the…
Introduction Magnolia scale (Neolecanium cornuparvum) is an insect that feeds exclusively on magnolia plants. It is one of the largest scale insects in the United States. The insect feeds by…
Viburnum leaf beetle (Pyrrhalta viburniI) is an insect that feeds on the foliage of viburnum plants. The beetle is native to Europe and Asia. It was first identified in North…
Introduction Cottonwood leaf beetle (Chrysomela scripta) is a significant defoliator of aspen, cottonwood, poplar, and willow. The insect is a native pest that occurs throughout the United States. While it…
Introduction Brown marmorated stink bug (Halyomorpha halys), often abbreviated to BMSB, and sometimes referred to as a stink bug, is a true bug in the family Pentatomidae. Brown marmorated stink…
Introduction Whitefly is a small insect that infests a diverse array of plants. More than 1,500 species of whitefly have been discovered worldwide. Whiteflies comprise the family Aleyrodidae. The nymphs…
Introduction Western tent caterpillar (Malacosoma californicum) is a significant defoliator of broadleaved trees and shrubs. It is one of the most frequently observed and widely variable tent caterpillars in North…
CTSP Certified Tree Care Safety Professional
EHAP Electrical Hazard Awareness Program
OSHA 10/30 Certified
Hoisting 2A/1C Lisenced
Commercial Licensed Drivers
