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What can I use to control red spider mite on greenhouse cucumbers?

Our Advice:

Start by raising the humidity level in your greenhouse - this pest prefers hot, dry conditions. Sprays of Organic 2in1 from Vitax or SB Plant Invigourator will help to control it. Alternatively, there is a biological control of predatory insects, but they need a minimum temperature of 16c to survive.

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