Wisconsin Pesticide Applicator Exam with Complete Solutions

Wisconsin Pesticide Applicator Exam with Complete Solutions Ch.1 List the general kinds of damage insect pests can cause -Chew on seeds, roots, leaves, stems, & fruits -Tunnel in roots, stems, & leaves -Suck plant juices -Promote gall formation and other malformations -Inject toxins into plants -Transmit diseases to plants -Create a nuisance for people Ch.1 Describe the structural features of insects Insects have: body form has 3 regions: head, thorax, abdomen; 3 pairs of legs attached to thorax; 0, 1, or 2 pairs of wings attached to thorax; 1 pair of antennae Ch.1 Explain how to distinguish insects from other arthropods Arthropods have: exoskeleton; body form has 2 regions: head & abdomen; usually 4 pairs of legs attached to head; no wings; no antennae Ch.1 Contrast the difference between simple and complete metamorphosis -Simple: "Incomplete Metamorphosis"; 3 stages: egg, nymph, & adult -Complete: 4 distinct stages: egg, larva, pupa, & adult Ch.1 Explain how temperature and humidity affect insect development *Temperature & humidity preferences vary for each insect. *Combined effect of both on reproduction & development is more dramatically different than the effect of either alone. -Temperature: development is faster with heat & slower with cold temps; insects die at the high levels of developmental threshold temps and become inactive at low levels