12/7/2023 0 Comments Spider bits hole hog![]() ![]() Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. Call the MSU Extension Garden Hotline at 88 for help with your insect or animal problems. Be sure to read the label.įor insect problems, insecticidal soap will work on soft-bodied insects like aphids, spider mites and caterpillars, but not on hard-shelled beetles. There are many more repellants created for ornamental plants than food plants. Squash and pumpkin leaves with gray, wilted areas and holes late in summer: Squash bugsĪnimal damage can be handled two ways: a fence or netting can be put up to keep the animal or bird out, or a repellant can be used to discourage animal feeding, but repellants do not work on birds.Young green bean plants appear to be mowed down: Woodchucks.Vegetables or fruit touching the ground are chewed into on bottom side: Slugs.Tomatoes close to the ground have holes poked into them: Birds.Small, ragged or rounded holes in petals: Insect.Small, round, brown or black spots that look thin and dried out on mints and chrysanthemums: Insect.Missing entire flower and possibly stem: Animal. ![]() Newly planted bulbs dug up and pushed aside: Raccoon or skunk.Small, tender plants clipped off at ground level and missing: Animal.Small transplants or seedling cut off at almost ground level: Cutworms.Ends of branches have needles partially removed or shoot is cut and on the ground: Deer.Tips of spruce new growth is cut off and on the ground in the spring: Squirrels.Photo credit: David Cappaert, MSU, Needles Leaf skeletonizing characteristic of bean beetle feeding. Hosta leaves removed to their stems: Usually deer.Missing parts of leaves, nothing left like leaf mid-vein: Animal.Petiole of tree leaf cut or damaged and found on the ground, yet leaf is healthy: Insect.Missing entire leaves with or without petiole, or connecting stem: Animal.Tan leaf with top and bottom intact, but no tissue in between top and bottom: Insect.Upper and lower leaf tissue removed, leaving just veins: Insects.Small holes in the middle of leaves or edges chewed, and edges of hole are leaf-colored: Insects.Here is a quick look at some common problems. These are the kinds of answers that Michigan State University Extension horticulture educators and Master Gardener hotline staffs give every day. Damage low to the ground can be any animal, and damage from insects and animals can occur overnight or during the day. Animal damage above 3 feet high is often deer, but woodchucks can climb to eat leaves or fruit. An insect cannot consume entire leaves, veins and midrib included, but they can feed on plants at all heights. ![]() It is impossible for an animal to eat small holes in leaves or to just strip tissue away. When looking at plant damage, think of the size of the animal. Having a ten-power hand lens or magnifying glass can help you see more of what is really going on. It is important to realize that animal repellants will not repel insects. The two divisions of pests for this article are vertebrates, such as deer, rabbits, woodchucks and chipmunks, and some kind of insect. If a gardener isn’t sure what pest is causing foliage, flowers or entire plants to go missing, time and effort can go into the wrong solution and the plant material keeps disappearing. ![]()
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