The red spider mite is a common sap-feeding pest which causes mottled leaves on greenhouse plants, houseplants as well as garden plants.
Common victims are: vines, peach, nectarines, cucumbers, tomatoes, aubergines, peppers, poinsettias, orchids and Impatiens.
These red spider mites love warm, dry conditions, and so will thrive in a greenhouse throughout the year. Outdoor, problems occur in late summer especially when the weather is hot and dry.
Prevention is the best cause of action with these pests, so remain vigilant and spot them earlier as it is much easier to control them before they take hold.