Insect Pests Diagnostics - NCSU
Transcript of Insect Pests Diagnostics - NCSU
![Page 1: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/1.jpg)
Insect Pests Diagnostics
Stacey Jones
Area Specialized Agent (Central Region)
Commercial Greenhouse and Nursery
![Page 2: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/2.jpg)
What is an Insect?
![Page 3: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/3.jpg)
Insect Orders
![Page 4: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/4.jpg)
Complete Metamorphosis
Incomplete Metamorphosis
![Page 5: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/5.jpg)
Complete Metamorphosis
![Page 6: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/6.jpg)
List of Orders
• Coleoptera-Beetles
• Lepidoptera- Butterflies and Moths
• Hymenoptera-Ants, Bees, Wasps
• Diptera-Flies
![Page 7: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/7.jpg)
BUTTERFLY OR MOTH
![Page 8: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/8.jpg)
Chewing Mouthparts
• Two mandibles
Exception: Bees
![Page 9: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/9.jpg)
Chewing Mouthpart Damage Leaves
• Defoliation
– Caterpillars
– Beetles (adult and larvae)
– Grasshopper
![Page 10: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/10.jpg)
Chewing Mouthpart Damage Leaves
• Shotholes
– Caterpillars
– Beetles (adult and larvae)
– Grasshopper
![Page 11: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/11.jpg)
• Margin notching
– Caterpillars
– Beetles (adult and larvae)
– Grasshopper
Chewing Mouthpart Damage Leaves
![Page 12: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/12.jpg)
• Skeletonization
– Caterpillars
– Beetles (adult and larvae)
Chewing Mouthpart Damage Leaves
![Page 13: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/13.jpg)
• Leaf Roller
– Caterpillar
Chewing Mouthpart Damage Leaves
![Page 14: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/14.jpg)
• Leaf mining
– Caterpillars
– Fly larvae
Chewing Mouthpart Damage Leaves
![Page 15: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/15.jpg)
Is it a Beetle or Caterpillar?
• Silk
![Page 16: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/16.jpg)
Is it a Beetle or Caterpillar?
• Frass
![Page 17: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/17.jpg)
Is it a Beetle or Caterpillar?
• Protective cases
![Page 18: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/18.jpg)
Is it a Beetle or Caterpillar?
• Silk
• Frass
![Page 19: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/19.jpg)
Beetles
• Hard elytra
• Line down the back
• Larvae no prolegs
![Page 20: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/20.jpg)
• Branch/Trunk Dieback
– Beetle larvae
Chewing Mouthpart Damage Branches and Trunk
![Page 21: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/21.jpg)
• Shoot dieback
– Caterpillars
– Beetles (adult and larvae)
– Cicadas
Chewing Mouthpart Damage Branches
![Page 22: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/22.jpg)
• Girdlers
– Mesquite Girdler
Chewing Mouthpart Damage Branches and Trunk
![Page 23: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/23.jpg)
• Exit Holes
– Beetle (adult and larvae)
Chewing Mouthpart Damage Branches and Trunk
![Page 24: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/24.jpg)
Borer Eggs
• Eggs laid on or below the surface
• Tiny larvae bore into the wood
![Page 25: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/25.jpg)
Flat Headed Borers
• Metallic Wood Boring Beetle
• Meandering galleries
• D shaped exit holes
• Fine saw dust
![Page 26: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/26.jpg)
Round Headed Borer• Longhorned Beetle
• Tunnels into heartwood
• Round exit holes
• Course saw dust
![Page 27: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/27.jpg)
Chewing Mouthpart DamageRoots
• Root feeding
– Scarab Beetle larvae
![Page 28: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/28.jpg)
Incomplete Metamorphosis
![Page 29: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/29.jpg)
List of Orders
• Hemiptera-True bugs
• Homoptera-Aphids, Whitefly, Hoppers, Cicadas
• Orthoptera- Grasshoppers, Crickets, Katydids
• Thysanoptera-Thrips
• Blattodea-Roaches
• Mantodea-Mantids
• Isoptera-Termites
• Odonata-Dragonflies and Damselflies
![Page 30: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/30.jpg)
Sucking Mouthparts
• Homoptera and Hemiptera have probiscis
• Rest in this group have chewing mouthparts
![Page 31: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/31.jpg)
True Bug Wings
• Half leathery/ half membranous
http://schmidling.com/lfbug1.jpg
![Page 32: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/32.jpg)
Main Pests
1. True bugs
2. Aphids
3. Whitefly
4. Thrips
1
2
3
4
![Page 33: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/33.jpg)
Main Pests
1. Scale insects
2. Mealybugs
3. Leafhopper
4. Spider mites
4
3
2
1
![Page 34: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/34.jpg)
Sucking Mouthpart Damage
• Stippling
– Aphids
– Whitefly
– Thrips
– Leafhopper
– Spider mites
![Page 35: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/35.jpg)
Sucking Mouthpart Damage
• Yellowing
– Aphids
– Whitefly
– Thrips
– Leafhopper
– Spider mites
![Page 36: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/36.jpg)
Sucking Mouthpart Damage
• Streaking- Thrips
![Page 37: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/37.jpg)
Sucking Mouthpart Damage
• Cupping
– Aphids
– Whitefly
– Thrips
– Leafhopper
– Spider mites
![Page 38: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/38.jpg)
Sucking Mouthpart Damage
• Fecal Spots
– Lacebugs
– Thrips
– Leafhoppers
![Page 39: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/39.jpg)
Sucking Mouthpart Damage
• Honeydew
– Aphids
– Whitefly
– Scale/Mealybugs
![Page 40: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/40.jpg)
Sucking Mouthpart Damage
• Sooty mold
– Aphids
– Whitefly
– Scale/Mealybugs
![Page 41: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/41.jpg)
Sucking Mouthpart Damage
• Exoskeletons
– Aphids
– Whitefly
– Leafhopper
![Page 42: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/42.jpg)
Sucking Mouthpart Damage
• White wax
– Soft Scale
– Mealybugs
![Page 43: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/43.jpg)
Sucking Mouthpart Damage
• Brown Scabs
– Armored Scale
![Page 44: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/44.jpg)
Sucking Mouthpart Damage
• Webbing
– Spider mites
![Page 45: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/45.jpg)
Disease Vectors
– Aphids
– Whitefly
– Thrips
– Leafhopper
![Page 46: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/46.jpg)
Miscellaneous Damage
![Page 47: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/47.jpg)
Egg Laying
• Leafhoopers
• Cicadas
![Page 48: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/48.jpg)
Galls
• Egg laying
• Saliva injection
![Page 49: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/49.jpg)
Not a Pest
• Leaf Cutter Bee
![Page 50: Insect Pests Diagnostics - NCSU](https://reader034.fdocuments.us/reader034/viewer/2022042302/625a96e2fbe7c378bb15abf1/html5/thumbnails/50.jpg)
Not Insect Damage
• Wood Pecker