Last week the question was: What is causing the bronzing symptom on this cotton leaf?
This is a symptom of spidermite damage. Spidermite populations can build up quickly in hot, dry conditions. Rain is their worst enemy and is usually enough to hold down their populations…assuming we’re getting some rain. Pyrethroid applications can wipe out beneficial insects and cause spidermite populations to flare, so be mindful of this when treating for other insects. Occasionally, treatment is needed to reduce spidermites. to see what is labeled, check out page 107 of the Cotton Insect Management section of the SC Pest Management Handbook.
Here is this week’s question: What is the white stuff growing on these peanut vines?