What factor is important for good performance of non-systemic insecticides?

The effectiveness of non-systemic insecticides largely depends on achieving good spray coverage. Non-systemic insecticides act on contact with the insect, rather than being absorbed and moved throughout the plant system. Therefore, it’s crucial that the insecticide is adequately applied to the surfaces where insects are likely to come into contact with it. This involves ensuring that the pesticide reaches all target areas, such as the undersides of leaves or the pests hiding in crevices.

Good spray coverage maximizes the amount of the insecticide that comes into direct contact with the pest, which is essential for effective pest management. This coverage can be influenced by factors such as spray technique, droplet size, and the equipment being used, all of which can enhance how effectively the insecticide performs in killing or repelling pests.

While other factors like moisture levels in the soil, insect movement speed, and air temperature during application can influence the overall pest management strategy or how the plants respond, they do not directly impact the performance of non-systemic insecticides as significantly as achieving thorough spray coverage does.