Eliminate these pests as soon as you detect them. Symptoms of chewing pests include severed leaves, stems or flower buds, holes in leaves, and discolored areas on surface or margins of leaves or flower petals. Sucking pests insert their mouthparts into plant tissue and suck out the juices. Some inject toxic compounds into the plant and some are capable of transmitting plant diseases. The symptoms of sucking pests often go unnoticed until the insects have become established in high numbers on the plant.
Nuisance pests cause no real damage.
They are considered pests simply because their presence is not desirable. Such insects flying, crawling or hopping about detract from the beauty of a plant. Some nuisance pests multiply rapidly and are found in overwhelming numbers. You can easily stop such infestations with careful cultural management and properly applied insecticide treatments. In cases where only a few plants are infested and the pests are relatively easy to find, remove the pests by handpicking.