Chapter 3 GROUND PEST INSECTS Wu Junxiang T Li Yiping Junxw@nwsuaf.edu.cn yp2003@126.com
Chapter 3 GROUND PEST INSECTS GROUND PEST INSECTS Wu Junxiang Junxiang & Li Yiping Junxw@nwsuaf.edu.cn lyp2003@126.com
Chapter 3 Ground Pest Insects Lecture Outline Overview White grubs > Elaterids Mole crickets >Other common ground pests Factors related to population Survey and management
Lecture Outline ¾ Overview ¾ White grubs ¾ Elaterids ¾ Mole crickets ¾ Other common ground pests ¾ Factors related to population ¾ Survey and management Chapter 3 Ground Pest Insects
Overview 1.Categories Over 320 species being in 8 orders,38 families recorded in China.Including grubs, elaterids,mole crickets,cutworms,root- maggots,root-aphids,root-bugs,root- weevils,root-borers,root-chrysomelids, root-longicorns root-scale,termites, crickets,spring tails,root mites
3 1. Categories Over 320 species being in 8 orders, 38 families recorded in China. Including grubs, elaterids, mole crickets, cutworms, rootmaggots, root-aphids, root-bugs, rootweevils, root-borers, root-chrysomelids, root-longicorns、root-scale, termites, crickets, spring tails, root mites. Overview
Overview 1.Categories grubs,elaterids,mole crickets and cutworms are the most common categories found everywhere because of abundant individuals
4 1. Categories grubs, elaterids, mole crickets and cutworms are the most common categories found everywhere because of abundant individuals. Overview
Overview 2.Distribution Ground pests found all over the country. More species and more severe damage in north than in south or in dry-land than in irrigable land. Most severe damage found in middle and downstream area of Yellow River
5 2. Distribution Ground pests found all over the country. More species and more severe damage in north than in south or in dry-land than in irrigable land. Most severe damage found in middle and downstream area of Yellow River. Overview