What are the main host plants for aphids? Symptoms of Aphid Damage to Plants Prevention Issues

We all know that aphids are a kind of pest, and the harm of this kind of pest is also relatively great. Do you know how to control this kind of pest? If you want to know, let's take a look at it together.

Host plant:

In the wild: wild plants, shrubs, hedges and trees

In the garden: ornamental trees and shrubs, including roses.

Crops: most fruits and vegetables and ornamental plants.

Where it was found: the whole world

Caption: small, soft pear-shaped insects less than 3 mm long are usually aphids. Depending on the species and plants, aphids may be beige, green, yellow or almost black. They tend to gather in groups in new growth or leaf gaps. See also black bean aphids and cabbage aphids.

Damage: there are many symptoms of aphid damage, including decreased growth rate, leaf mottling, yellowing, growth retardation, leaf curl, browning, wilting, low yield, and eventually death. With the loss of juices fed directly to plants, aphids can spread disease.

Prevention problems: always check for early outbreaks of plants. Use a clip to hold the aphid-infested stems and compost them. Encourage beneficial insects, including ladybugs, aphid flies and net wings, which are important aphid predators.

Managing outbreaks: high-pressure spray from garden hoses can help plants remove aphids during small outbreaks. During the follow-up, insecticidal soap was used twice at an interval of one week. Be sure to spray soap on the lower layer and cracks of the leaves.

Tip: ladybugs and their larvae are very useful insects. Welcome to your garden. Ants are often attracted by honeydew left by aphids, so their activities often lead to the accumulation of aphids.