- Fruit trees are vulnerable to insect infestations by numerous pests, including aphids, beetles, caterpillars, earwigs, flies, leafhoppers, leafminers, mealy bugs, mites, psylla, scale insects, thrips and twig borers. Accurate identification of the pest, as well as its current stage of development, is essential; if unsure, consult the local university extension before using insecticides.
- Several organic insecticides can be used to curb insect pests on fruit trees. Use horticultural oils for problems with aphids and scale insects. Insecticides with Bacillus thuringiensis also are approved for organic use. Additional insecticides available for organic control include kaolin clay, neem and rotenone. However, do not use for fruit trees in bloom because these are broad-spectrum insecticides and thus also toxic to bees.
- Remember, even organic insecticides may be hazardous. Always read instruction labels carefully, and follow instructions as directed. Insecticides must be stored safely out of reach of pets and children.
next post