Other insect pests of hemlock include elongate hemlock scale and hemlock borer. 1. Elongate hemlock scale is in a group of insects called the armored scales. Elongate hemlock scale. Flip an adult scale over, and if there is a separate soft body beneath the hard shell, it is an armored scale. 2 1. More information can be found at www.nhbugs.org. Elongate Hemlock Scale, an Exotic Scale Insect Pest of Christmas Trees and Other Conifers. Elongate Hemlock Scale By: Jill Sidebottom 2019 Christmas Tree Notes This publication describes the symptoms, life cycle and control of the elongate hemlock scale, a pest that causes white, waxy spots on the upper surface of Christmas tree needles. Fiorinia externa and Tsugaspidiotus tsugae (Homoptera: Diaspididae): distribution, abundance, and new hosts of two destructive scale insects of eastern hemlock in Connecticut. Eastern hemlock has proven to be a resilient tree, able to persist despite intensive use, large scale land clearing, and insect threats. The scale was accidently introduced to the U.S. from Japan and was first found in New York, NY, in 1908. 1977. Field shot where scale spread has been monitored over a 12-month period SUMMARY: In 2009, a series of pesticide trials were conducted to determine timing and materials for scale control. The insect spends most of its life stuck to the undersides of needles covered by a hard, waxy coating. This document is ENY2040, one of a series of the Entomology and Nematology Department, UF/IFAS Extension. Elongate Hemlock Scale, an Exotic Scale Insect Pest of Christmas Trees and Other Conifers - UF/IFAS Extension; Articles McClure, M. S. and M. B. Fe. Gypsy moth, elongated hemlock scale, spotted lanternfly, Brown marmorated stink bug, and Japanese maple scale are some of the invasive insects that we will need to look for. 2 Cryptomeria Scale, Aspidiotus cryptomeriae Cryptomeria scale also has two generations per year in Maryland. Other On-Line Resources: University of Florida IFAS Publication #ENY2040: Elongate Hemlock Scale, and Exotic Scale Pest of Christmas Trees and Other Conifers – elongate hemlock scale risk to Florida conifers Trees, Forests & People, Vol. For more information on this and other topics visit the University of Maryland Extension website at www.extension.umd.edu Scale Insects on Hemlock HG 81 2006. The non-native Elongate Hemlock Scale (Fiorinia externa), which is sometimes called "Fiornia scale," occurs on the underside of needles and on cones. Compare the pictures of hemlock woolly adelgid above with the look-alike images below to help correct identification. Original publication date September It may infest its namesake host as well as on other conifers including firs, Douglas-fir, spruces, cedars, pines, and yews. A sample of the infested plant material may be taken to the local Clemson Extension Service county office. Male elonagate hemlock scales produce a white, fluffy covering which can bee seen on the needles and may affect sales. The Woolly Adelgid has already done significant damage to many forests. Other insects, including the elongate hemlock scale, oak skeletonizer cocoons, caterpillar cocoons or spider egg sacs may be present on hemlock needles or shoots. Transylvania County Cooperative Extension is working closely with the Hemlock Restoration Initiative, Conserving Carolina, and the Transylvania Natural Resource Council to assist private land owners with the costs associated with treating hemlocks in sensitive riparian areas. The EHS differ from the HWA because they cause foliar discoloration by sucking nutrients directly from the hemlock needles and covering themselves in a waxy cuticle. Identification of the scale is important as it may aid in better control. Adam Dale, Travis Birdsell, and Jill Sidebottom. More recently, researchers have seen even more stress on hemlock populations due to yet another invasive, non-native pest called the Elongate Hemlock Scale (EHS).