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Control of Aphids on Vegetables

Lady Beetles destroy large numbers of aphids

Aphids, or plant lice, are small, soft-bodied insects that have two "tail pipes" sticking out their rear end. These insects often gather on the underside of leaves and on stems. They suck plant juices, stunt growth, and cause the leaves to curl.

Aphids secrete a sticky substance on the leaves called honeydew. A black sooty mold will often grow on this honeydew.

Beneficial insects…

There are several beneficial insects, such as lady beetles, that will destroy large numbers of aphids.

If you see any lady beetles among the aphids, give them a few days to reduce the population. If you see no lady beetles, or they fail to reduce the number of aphids, use either a 57 percent malathion emulsifiable concentrate, a 5 percent malathion dust or thiogard 3. Safers insecticidal soap can also be used. Read the label carefully for mixing instructions.

Spray top and bottom of leaf…

Be sure to spray the undersides and top sides of the leaves so that your spray will reach the part of the plant where the aphids are feeding. Don't forget to wash out your sprayer when you finish using it.

Remember - for control of aphids use a 57 percent malathion emulsifiable concentrate, 5% malathion dust, thiogard 3, or safers insecticidal soap.

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