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  • August Tips and Tasks

    … a healthy root system.   Make a plan to add a new tree to your garden this fall, if feasible. Shade trees help … in trees, stumps, woodpiles, sheds, etc., and feeds on insects. Unlike most other wasps and hornets this one is a … nests found outside, especially if they are located in a tree or an isolated area. These are beneficial creatures that …

  • Peach, Cherry, Plum, Nectarine, and Apricot Selection for Home Gardens

    … are susceptible to brown rot disease. Apricot, sweet cherry, and peach are very susceptible and tart cherry and plum are less susceptible. Sweet cherries tend to … tolerate harsh weather. Sam Early ripening, large, black cherry. Large, vigorous, upright trees. Blooms later than …

  • Treehoppers on Flowers

    … March 10, 2023 Treehoppers are interesting looking insects that resemble thorns (see photo above) or buds of plants. They are sucking insects and feed on plant sap by inserting their long, thin … injury. The nymphs are very spiny in appearance. These insects rarely cause noticeable injury and do not require …

  • Parasitoids

    … 16, 2023 What are parasitoids? Parasitoids are small insects  whose immature stages develop either within or attached to the outside of other insects, referred to as hosts. Parasitoids eventually  kill … although a few species of beetles, twisted wing insects, moths, and other insects have been identified as …

  • Azaleas and Rhododendrons: Identify and Manage Problems

    … with honeydew, then sooty mold; flat, oval transparent insects on the lower leaf surface Azalea Whitefly Leaf … bugs under control. Do not spray if you find beneficial insects feeding on the lace bugs. Look for nymphs and black … cause stunting and wilting, and may kill small shrubs and tree seedlings. The adult weevils are about 3/16 inch long, …

  • Calico Scale

    … scale insect groups and biology on Introduction to Scale Insects . This is a common pest of flowering, shade, and … large quantities of honeydew, which can attract other insects (mainly flies, wasps, and ants) and support the … summer, these options are not as low-impact on other insects, nor are they practical for mature trees. …

  • Spider Mites on Trees and Shrubs

    … September 18, 2023 About spider mites Mites are not insects but are related to ticks and spiders. Adult mites … on the older needles at the base (or one side) of the tree (or shrub), eventually moving up the tree (or shrub). When the mite population is very high, …

  • Understanding Degree Days

    … targeted developmental stage. 1) Non-native or Invasive Insects Using insect DD data collected by researchers outside … “full bloom” (when most of the buds are open). Yellowwood tree in bloom Photo: Miri Talabac Japanese snowbell in bloom …

  • Phytotoxicity Damage on Trees

  • Forest Pests: Gypsy Moth

    … that hatch (including mice, shrews, and some birds), these insects can ravage a tree, feeding on unripe tissues of annual shoots, flowers and … term, this mortality and defoliation can cause changes in tree species composition of the forest. Regenerating tree