Entomology 401. Identifying Friends and Foes. Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000 insect species described. Pests.
Entomology 401 Identifying Friends and Foes
Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000 insect species described.
Pests Any living organisms which are detrimental, troublesome, noxious, destructive, a nuisance to either plants or animals, human or human concerns, livestock, human structures, wild ecosystems, etc. • Beneficials • Food production • In the United States alone, pollination by bees accounts for over US$9 billion of economic revenue • Ecological services • Products: honey, shellac, dyes, silk • E.g. Honey bee, silk worm • Predators: Minute pirate bug, Assassin bug, Damsel bug, Green lacewing, Ladybug
Herbivores: Feeds upon living plant material Predator: An animal that feeds upon other animals (prey) that are either smaller or weaker than itself
Those with chewing mouthparts: simply chew up and swallow their victims Herbivores: grasshopper, green clover worm, army worm, etc. Predators: ladybugs, ground beetles, preying mantis, etc. • Those with piercing sucking mouthparts: stick the mouthpart into prey and suck out the body content Herbivores: redbanded stink bug, aphids, white flies Predators: assassin bug, lacewing larvae, syrphid larvae
Boll Damage Adult Boll Weevil Feeding
Tiger beetles http://www.realmonstrosities.com/2012/01/tiger-beetle.html
Whiteflies Thrips Spider Mites
Stink Bugs Lygus Bugs
Robber fly • They have extremely sharp eyesight and can fly at high speed, catching other insects in mid air. • They have stabbing mouthparts (proboscis) which inject a powerful neurotoxic venom and digestive juices into the victim, liquifying its innards, which the fly sucks afterwards.
Bigeyed Bug Nymph Minute Pirate Bug
Mantodea : Mantidae Stagmomantis sp. Tenodera sp. Gonatista sp
Mantodea (thorax) raptorial foreleg
Hymenopteran Parasitoids Platygastrid wasp