As they grow and food is depleted, they expand and web over additional foliage. The larvae mature in about six weeks, at which time they drop to the ground to pupate. The moths emerge over an extended period in multiple generations, in warmer areas up to four generations can be completed annually.
Apply Bt bacillus thuringiensis if they are a persistent problem , it is a bacterium that is known to be highly effective against fall webworms , and is readily available to home gardeners. It's harmless to people and pets. Apply it at either bloom or petal fall, or both. Bt It is a stomach poison and must be ingested . It is more effective when applied during warm, dry weather while the larvae are actively feeding. Bt breaks down quickly in nature so multiple treatments per season is necessary smaller plantings or home gardeners. Broad-spectrum insecticides, such as Pyrethin or malathion only as a last resort.
Sprays/Pesticides must be applied in the pre-bloom stage to prevent injury. Pesticides such as pyrethroids that are more effective in cool than warm weather will work more efficiently against Fruitworms earlier in the season, and is the recommended early season chemical treatment for most Fruitworms.
Proper sanitary practices are vital to the health of your garden. Proper sanitation can help to ensure disease-free pest-free and productive gardens. Try to keep the garden free of any diseased dead or damaged plant materials. Remove cuttings from pruning and trimming and either destroy them - if diseased, or send them to the compost pile. Leaving rotting fruits and vegetables in the garden is like a written invitation to unwanted pests and diseases.
If a diseased or dead plant part has to be cut, the microorganism that caused the problem is probably on the tool you just used. Like a surgeon, sterilize all tools by washing in soap and water - rubbing alcohol wouldn't hurt either. If you pinch off diseased plant parts, wash hands before handling any other plants. Keep Weeds under control. Till the soil in the spring before planting to expose and kill larvae that wintered over in the soil.
|Plant Maggots||Cut Worms||Leaf Hoppers|
|Leaf Miners||Aphids||Tomato Horn Worm|