Insect pests are relatively easy to identify and are influenced by weather conditions.
Insecticides should be applied when the pest is first observed. One or two applications are normally sufficient.
There are numerous insects that are harmful to plants, and these pests enjoy diverse tastes and feeding methods,
which means that a variety of pesticides have been developed to control their habits,but they all operate by one of two methods:
Contact and stomach insecticides These take effect directly through contact with the insect, or indirectly, when the pest consumes the sprayed plants. Contact insecticides are applied to both the upper and lower sides of leaves, ensuring total coverage. But avoid drenching plants, as this causes droplets to form and run off the leaves, reducing the product’s effectiveness. |  |
Systemic insecticides These insecticides are absorbed by the plant and systematically translocated throughout its roots, stems and leaves. They are most effective when applied as a full-cover spray. However, on large plants, systemic insecticides should be sprayed mainly onto the lower parts of the plants. They are especially effective against small sucking insects, like aphids. |  |
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