Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Series

Historical Materials from University of Nebraska-Lincoln Extension

1986

Larvae

Articles 1 - 4 of 4

Full-Text Articles in Education

G86-774 Western Corn Rootworom Soil Insecticide Treatment Decisions Based On Beetle Numbers, J. F. Witkowski, David L. Keith, Zb Mayo Jan 1986

G86-774 Western Corn Rootworom Soil Insecticide Treatment Decisions Based On Beetle Numbers, J. F. Witkowski, David L. Keith, Zb Mayo

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide describes how counting western corn rootworm beetles throughout the summer can be used to determine the need for insecticide applications the following spring.

Western corn rootworms are one of Nebraska's most serious insect pests of corn. Eggs laid in the soil from late July through September overwinter and begin hatching in late May or early June. Larvae feed on corn roots, causing plants to lodge, and may reduce grain yields. The greatest injury usually occurs from late June to mid-July, when all corn roots may be destroyed if infestations are heavy. Fully grown larvae pupate in the ...


Ec86-1545 Common Forage Legume Insects Jan 1986

Ec86-1545 Common Forage Legume Insects

Historical Materials from University of Nebraska-Lincoln Extension

This 4-color extension circular was prepared by Extension entomologists of the North Central States in cooperation with the Federal Extension Service, U.S. Department of Agriculture. This publication shows the following insects:

1. Alfalfa weevil adult, larvae
2. Clover leaf weevil larva
3. Sweetclover weevil
4. Variegated cutworm
5. Grasshopper
6. Green cloverworm
7. Potato leafhopper
8. Meadow spittlebug and nymphs
9. Spotted alfalfa aphid
10. Pea aphid


Ec86-1546 Common Vegetable Insects Jan 1986

Ec86-1546 Common Vegetable Insects

Historical Materials from University of Nebraska-Lincoln Extension

This 4-color extension circular was prepared by Extension entomologists of the North Central States in cooperation with the Federal Extension Service, U.S. Department of Agriculture. This publication shows the following insects:

1. Cabbage looper and imported cabbageworm
2. Cabbage aphid
3. Hornworm
4. Two-spotted spider mite
5. Bean leaf beetle
6. Mexican bean beetle adult, pupa, larvae, eggs
7. Thrips
8. Root maggot
9. Striped cucumber beetle
10. Spotted cucumber beetle
11. Colorado potato beetle
12. Potato flea beetle
13. Potato leafhopper
14. Squash vine borer
15. Squash bug nymphs and adults


Ec86-1540 Common Tree And Shrubs Pests Jan 1986

Ec86-1540 Common Tree And Shrubs Pests

Historical Materials from University of Nebraska-Lincoln Extension

This 4-color extension circular was prepared by Extension entomologists of the North Central State in cooperation with the Federal Extension Service, U.S. Department of Agriculture. This publication shows the following insects:

1. Oystershell scale
2. Maple bladder gall
3. Flatheaded borer
4. Aphid
5. Pine needle scale
6. Bagworm
7. Smaller European elm bark beetle
8. Elm leaf beetle and larvae
9. Eastern tent caterpillar
10. Yellow-necked caterpillar
11. Spruce mite