What to observe

• Fine stippling or pale speckling that expands over time
• Mites, eggs, or cast skins on leaf undersides under magnification
• Webbing in heavier infestations, often around petioles, leaf edges, or dense growth
• Hot or dry microclimates where populations may increase rapidly

Common look-alikes

• Thrips feeding scars
• Spray or contact injury
• Some nutrient or environmental spotting
• Dust or residue mistaken for eggs or cast skins

Evidence that improves confirmation

• Inspect several symptomatic and nearby leaves with magnification
• Look for moving mites plus eggs rather than webbing alone
• Map distribution and repeat counts to determine whether the population is increasing

Risk context

• Dense canopies can hide early colonies
• New plants, clothing, tools, and nearby vegetation can move pests between areas
• Environmental conditions can influence population growth but do not prove mite presence

Management principles

• Isolate affected material when practical and prevent movement to clean areas
• Remove heavily damaged or infested debris according to site policy
• Improve scouting frequency and preserve before/after counts
• Use only lawful, label-compliant biological, cultural, mechanical, or chemical controls appropriate to the crop and location

Keep the conclusion proportional to the evidence

Use a confirmed identification when available. When evidence is incomplete, label the conclusion as a suspicion or differential rather than presenting it as proven.

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