Late-summer greenhouse clear-up
Misting, water, humidity and feeding are all key, says Ruth
1 Dampen the floor in the morning, and in the afternoon, too, in hot weather, to keep the heat manageable. A bowl of water under staging will evaporate and have the same effect.
2 Open the door and windows to keep a steady breeze flowing through, and if you haven’t already done so, hang shading to prevent plants scorching.
3 Be vigilant for pests such as tomato moth caterpillars, which can be fed to the birds, and sneaky snail incursions. Avoid using pesticides as they will kill important pollinators, too.
4 Regular feeding and watering helps prevent blossom end rot on your tomatoes, aubergines and peppers. The condition is caused by calcium deficiency due to irregular watering.
Humidity helps deter pests like glasshouse red spider mite Spraying with water helps raise humidity and lower the temperature