How to Identify and Control Corn Earworms on Cannabis Plants скачать в хорошем качестве

How to Identify and Control Corn Earworms on Cannabis Plants

How to Identify and Control Corn Earworms on Cannabis Plants Professor DeBacco Corn Earworms Description Corn earworm (Helicoverpa zea) is one of the most widespread and commonly damaging insects in much of the United States, affecting both field crops and vegetable crops. Most damage is done by the late stage caterpillars which are present 10-14 days after egg hatch and feed for a week or two before being full-grown. Often there will be granular-form fecal pellets (frass) left around the feeding site that can be used for diagnosing injury. Corn Earworms Identification The adult moths fly at dusk and evening, although a few are sometimes active on overcast days. On other plants the moths lay most eggs on leaves or, in corn, on green silk. On hemp, eggs are likely laid on the outer areas of the plant, particularly on younger leaves, such as those surrounding the flower buds and developing seed. Managing Corn Earworms Entrust was the only product that provided effective control of CEW. *Unfortunately, this is the one product that we evaluated that is not allowed to be applied on hemp. The insecticide Entrust is OMRI-certified however. Link to Lecture Slides: https://drive.google.com/file/d/1kglX... *Due to the description character limit the full work cited for "How to Identify and Control Corn Earworms on Cannabis Plants" can be viewed at... https://drive.google.com/file/d/1Iv3k...