Lygus Bug
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This document discusses the Lygus bug, a common agricultural pest. It notes that Lygus bugs feed on over 385 plants, can cause chalky spots in peas, and are native to North America. The document describes the physical appearance and lifecycle of Lygus bugs, including that they overwinter as adults and have 1-3 generations per year. It provides information on scouting and identifying Lygus bugs using a sweep net, as well as the type of damage they cause. Finally, it discusses control methods like early weed removal and chemical applications, and mentions some reports of Lygus bug impacts in crops like canola.
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This document provides information on the biology, lifecycle, damage, monitoring, and management of three caterpillar pests that attack tomatoes and peppers: the tomato fruitworm, beet armyworm, and southern armyworm. It describes the eggs, larvae, pupae, and adults of each species. It outlines their wide host ranges, preference for solanaceous crops, and ability to damage fruits and render them unmarketable. Monitoring and action thresholds are provided based on scouting for eggs and larvae. Cultural, chemical, and biological control tactics are described to manage these pests, with an emphasis on conservation biological control.
Fruitworms of vegetable
integrated pest management (IPM ) of fruit worms under green house condition in Jordan / Eng. Khaleel Amer
Type of pests
Insects and non-insect pests like mites, nematodes, snails, slugs, rats, and rabbits can damage crops. Insects are the most common pests and damage crops from germination through harvest by feeding on plant tissues or sucking sap. They can damage stems, leaves, flowers, fruits, and roots. Non-insect pests also negatively impact agriculture, with mites sucking plant sap and nematodes infecting roots. Snails and slugs feed on leaves, stems, and fruits of many plants.
Insect pests 2012
This document discusses various insect pests and methods for their control. It describes the life cycles and symptoms caused by cabbage white butterflies, wireworms, cockchafer grubs, turnip flea beetles, codling moths, apple sawflies, vine weevils, brown-tail moths, European pine sawflies, aphids, whiteflies, scales, slugs, snails, spider mites, and root knot nematodes. Control methods include biological controls using parasites, predators and nematodes, as well as chemical controls using approved insecticides and nematicides applied at different life stages of the pests.
Insect Pests of Tomato and Cole Crops
1. To diagnose plant problems, carefully examine plants for abnormal characteristics, look for patterns of injury, and scout plants to identify the cause.
2. Common plant problems can be abiotic, caused by non-living factors like weather, or biotic, caused by living organisms. Pests cause biotic problems and identifying the specific pest is important.
3. Proper scouting involves monitoring marked areas over time, considering when and how symptoms developed, and using identification resources to determine the likely cause of injury.
6 Insects That Affect Plants In Colorado
The document discusses various insects that affect plants in Colorado, grouping them into three categories. It provides details on aphids, army cutworms, borers, boxelder bugs, cabbage loopers, codling moths, and other insects in Group I. Group II covers the Colorado potato beetle, Cooley spruce gall adelgid, earwigs, eriophyid mites, grasshoppers, and Ips beetles. Group III includes the Japanese beetle, leaf cutter bees, leafhoppers, leafminers, pearslug, pine tip moth, and pinon pitch mass borers. Control and identification information is provided for many of the insects.
integrated pest management practices for cotton
integrated pest management practices for cottonDepartment of Entomology, UAS Raichur. GBPUAT Pantnagar
cotton crop needs highest pesticide application for pest management, So we came with ipm practices for reducing insecticide spray, to manage the resistance development and secondary outbreak of sucking pestGrasshoppers Integrated Pest Management
Grasshoppers are sporadic pests that sometimes migrate in large populations and defoliate gardens. More than 200 grasshopper species occur in California, but only a few like the devastating grasshopper and valley grasshopper cause significant problems. Grasshoppers lay eggs in soil in fall which hatch the following spring. Nymphs molt several times before becoming adults. Population sizes vary yearly, with major outbreaks occurring every 8-10 years if conditions are favorable for several years. Grasshoppers prefer young plants and remove large sections of leaves, sometimes devouring entire plants. Management options during major invasions are limited, but trap crops and insecticides around garden borders can help control smaller populations.
False Chinch Bug Integrated Pest Management
The false chinch bug is a small insect pest that feeds on plants and migrates from fields into landscapes in the spring. Wet, cool springs encourage large populations that can damage home gardens and young trees. Adults are gray-brown bugs about 1/8 to 1/6 inch long with overlapping wings. They overwinter as nymphs and adults in uncultivated areas and have several generations per year. Homeowners may see large swarms but most plants can tolerate some feeding if kept well-watered.
pratylenchus vulnus
Pratylenchus vulnus is a plant-pathogenic nematode that infects the roots of many plants, including Persian walnut, grapes, citrus, stone fruits, and berries. It causes lesions on roots that reduce plant vigor and yield. P. vulnus has a wide host range and is established throughout California, where it is a primary cause of tree decline. Management strategies include nematicides, hot water treatment of roots, and using tolerant rootstocks, though options are now more limited since the loss of methyl bromide and DBCP.
Ipm of cotton
1. The document identifies and describes several major insect pests that affect cotton crops in India, including leafhoppers, aphids, whiteflies, thrips, bollworms, and others.
2. It provides details on the identification, life cycles, damage symptoms, and management strategies for the main sucking pests and bollworms. Integrated Pest Management approaches including cultural, mechanical, biological and chemical controls are recommended.
3. Several key insect pests can cause over 50% crop loss to cotton. Proper identification of pests and timely implementation of controls are important to reduce yield impacts and maximize cotton production in India.
Tomato Insect Pests ID
This document summarizes the results of a survey of Master Gardeners regarding entomology and integrated pest management (IPM). Some key findings were that the most worrisome pests were weeds, insects, and diseases. Many respondents were not aware of biological control products or IPM practices. The top priorities for IPM were identified as minimizing environmental impact and reducing chemical pesticide use. Common hurdles to adopting IPM included a lack of awareness and availability of information. The document also provides guidance on scouting and identifying various common garden pests like aphids, flea beetles, and caterpillars.
Insect pest of cotton 1
The document discusses various insect pests that affect cotton crops in India. It identifies 14-15 major pests, including sucking pests like the cotton leafhopper and aphids, bollworms like the American bollworm and spotted bollworm, and defoliators such as the cotton whitefly. These pests can cause up to 60% crop loss. The document provides details on the identification, lifecycles, damage symptoms, and control of these major cotton insect pests. It emphasizes the importance of integrated pest management and avoiding overuse of pesticides, which can lead to resistance and resurgence of pests.
Similar to Lygus Bug (20)
Lygus Bug
- 1. Lygus Bug Nicole Gray MSU Hill County Extension Agent
- 2. Lygus Bug
- 3. Lygus Bug Lygus lineolaris “Tarnish Plant Bug” Feed on over 385 crop and weed plants Chalky spots in Peas Generalist Native to North America
- 4. Lygus Bug Adult ¼“ long and 1/8” wide Pale green- reddish-brown Triangle/v mark Legs and antennae long
- 5. Lygus Bug Identification Pea Aphid vs Lygus bug
- 6. Lygus Bug Survive winter as adult in ground litter, crop residues, and buildings May June July August September Overwintering adults become active, feed, lay eggs Nymphs feed, new adults emerge New adults mate, feed, lay eggs, nymphs feed Nymphs feed, new adults emerge Adults begin to overwinter
- 7. Lygus Bug Lifecycle Multiple Generations dependent on environment Overwintered adults emerge mid-April to late May and feed on host weeds 1st generation adults: mid-June to July leave host weeds, dispersing into neighboring crops 2nd generation adults: emerge late August and September potentially cause economic damage
- 8. Lygus Bug Have 1-3 generations Early Spring and Late Fall redroot pigweed, stinkweed, wild mustard/flixweed, kochia, hoary cress, russian knapweed, russian thistle, red clover, dandelion, and lamb’s-quarters Watch out for volunteer! Flax, wheat, canola, lentils, sunflowers, beans, buckwheat, and strawberries
- 9. Lygus Bug Scouting Begin monitoring when plants start to flower to pod ripening stages Lower precip, lower threshold PNW threshold 10 lygus bugs per 25 sweeps Can be counted at edge if biomass is consistent with field or to thick to walk through (similar crop stage)
- 10. Lygus Bug Scouting Sweep Net 15” Sailcloth vs muslim Paper bag
- 11. Chalk Damage White spot may appear on cotyledon of some legumes Apperance, grade, marketability
- 12. Lygus Bug Damage Nymph and adult Piercing-sucking mouthpart Puncture pod and seed coats Inject toxic substance in plant parts Leaves pit or crater like depression With or without chalky appearance
- 13. Chalk Damage Rough harvesting or handling High moisture levels Moisture Level?
- 14. Lygus Bug Control Early Weed Control Timing: during bloom stage early morning or late evening to minimize bee kill Biocontrol: parasitic wasps Chemical Control Zeta-cypermethrin Chlorpyrifos Carbaryl
- 15. Lygus Bug Reports North Dakota: 1996, 2002 Manitoba, 20% decrease in yields from damage between flowering and pod maturity (canola) Reports in Canola in Sunburst
- 16. Extension Farm Bill due March 31st Looking for some test plots for pea fields: Phosphorus response Pea Leaf Weevil Confirm Lygus bug species NARC 100 year anniversary July 1st