Pests and disease are an unavoidable part of summer in the garden and many gardeners will be out in the vegetable and flower garden with their sprayers and dusters trying to combat the worst of the problems by applying insecticides and fungicides.
However, when you are spraying in the heat and humidity of the summer, there are some important tips to keep in mind in order to avoid injury to your plants:
Spray injury is much more likely when plants are stressed due to lack of water. When your plants are well watered, their cells are turgid and the foliage is much less likely to suffer from chemical burn.
Spray injury can occur if you spray in the bright sun during the heat of the day because the combination of the heat and the chemicals can burn the foliage. Most chemicals should not be sprayed when the temperature is above 85°F or 90°F. During the summer, the best time to spray is in the early morning or in the evening.
- This also helps protect the bees if you ar spraying an insecticide.