Green Lacewing Larvae


Control of Aphids and other Soft Bodied Insect Pests

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The Beneficial Insect Co.


Natural Control of Garden Aphids


Green Lacewing Larvae feed primarily on soft-bodied garden pests - primarily aphids. The larvae are a natural enemy of aphids but also feed on other garden pests including mites and pest insect eggs. While the adult Green Lacewing feeds primarily on nectars and pollens, in the larvae stage of the Green Lacewing are voracious natural predators of a large number of pest insects including garden aphids.

Green Lacewing (Chrysoperla rufilabris) larvae live in early every part of North America but tend to prefer habitats where high humidity exists. This makes them an important beneficial insect for controlling aphids in greenhouses and irrigated crops, especially in the southeastern and midwest United States. Green Lacewing Larvae are very active and can kill up to 600 aphids while in their larvae stage which lasts from two to four weeks.

Green Lacewing Larvea feeding on an aphid
Ladybugs also offer natural control of aphids.


Lacewing Larvae - Just what are they?

In the larvae form, Green Lacewings are grey/brown in color crawling insects. They have a very big appetite and essentially suck the fluids from the body of their prey with large pincers.

Several species of aphids, spider mites (especially red mites), thrips, whiteflies, eggs of leafhoppers, moths, and leafminers, small caterpillars, beetle larvae, and the tobacco budworm are reported prey. They are considered an important predator of long-tailed mealybug in greenhouses and interior plantscapes

Where are Green Lacewings most effective?

Green Lacewing Larvae are most effective in humid areas including greenhouses and interior gardens. They are considered a very good natural control of a number of insects, including:

  • Aphids
  • Spider mites and Red mites
  • Thrips, whiteflies, long-tailed mealybugs
  • Eggs of leafhoppers, moths and leafminers
  • Small caterpillars, beetle larvae and tobacco budworms

Green Lacewing Larvae can be used on a number of different plants and foodcrops such as cotton, sweet corn, potatoes, tomatoes, peppers, eggplants, apples and strawberries. We have found that they are less effective on peppers, tomatoes & cukes and seem to have problems finding prey on plants that have leaves we would consider hairy or sticky.

How many Green Lacewing Larvae do I need?

As with all of our beneficial insects, we recommend that you monitor the population of Green Lacewing Larvae closely. It is important that the Lacewing Larvae have a sufficient food source to be able to sustain the life cycle. We recommend that you start using the larvae early in the season, deploying them throughout the growing season to take advantage of their natural life cycle. Plan on deploying them at least four times, two weeks apart, this insures that you have overlap and are able to take advantage of the lacewings throught their lifecycle. Plan on the larvae you first placed on the plants laying eggs and replacing your larvae in about 4 to 6 weeks. Using this natural cycle, you can insure that pest insects are controlled throughout the growing season.

In order to properly maintain the population of green lacewings throughout the growing season it may be necessary to supplement the adult green lacewings food supply. It is important that the adult lacewings stay near your garden or where they are released to insure that they will lay eggs again in your garden and control the pest insects. Without food you will find that the adult lacewings will disperse and you will need to purchase additional larvae later in the growing season. There are commercially available foods or "honeydew" that can be used for this purpose, these should be refreshed during the evening as the adults are most active during the night.

In a typical small garden or greenhouse we recommend the release of a 1000 larvae or less. In situations where lacewing larvae are being deployed to control pest insects in large crops such as corn, tobacco or apples you will need larger concentrations of lacewings, generally 5 times that amount per acre to be effective.

How do you use Green Lacewing Larvae?

It is best to disperse the green lacewing larvae throughtout the infected garden plants. You can do this by simply spreading them around from the container they are shipped in. It is important that the larvae be kept out of direct sunlight in the container and that you provide them with sufficient room to feed as they are cannibalistic and will eat each other.

Green Lacewing Larvae Prices

Green Lacewing Larvae are available from The Beneficial Insect Company starting in groups of 1000.

1000 - $38.00
2000 - $72.00
5000 - CALL
10000 - CALL

To Guarantee Live Delivery Shipped Only Next Day Air June - Sept.
Shipped 2nd Day Air All Other Months.
- NOT ALWAYS AVAILABLE -


 

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The Beneficial Insect Co.
PO Box 471143
Charlotte, NC 28247-1143
Last updated Sat / 06.21.10
1998-2010