Commonly known as the green lacewing the Chrysopa carnea can be an effective treatment for aphids. While the adults are not predatory the new hatched larvae are vicious eaters and will eat up to 50 aphids per day. The larvae will also eat red spider mites, thrips, whiteflies, caterpillars, or just about any other soft bodied insect (they may even resort to cannibalism if there is nothing else to eat).
Dosage - The information given here is a general guideline. Release rates can be affected by the stage/size of the cannabis plant, climate conditions, and level of infestation.
For light infestations use 5 larvae per ft², repeating weekly. For heavy infestations introduce 40 larvae per ft², repeating twice in a timespan of 7-10 days.
If you have purchased the 1000 count of the C. carnea they will arrive in a 500ml shaker with a bran carrier. Gently twist open the top and shake the C. carnea and bran onto the leaves of the plant. Distribute in hotspots and when the lacewings have cleaned up those spots they are able to fly around and find any other prey. Note - if your cannabis crop is in the flowering stage we recommend the use of bioboxes. Broadcasting in not recommended as the carrier materials can stick to the flower sites.
If you have purchase the 10,000 count of the C. carnea they will arrive in a 5L bucket with a bran carrier. If the plants are in veg broadcast bulk materials over the canopy of your crop concentrating on aphid hotspots. Note - if your cannabis crop is in the flowering stage we recommend the use of bioboxes. Broadcasting in not recommended as the carrier materials can stick to the flower sites.
To release bulk eggs - Upon receipt eggs will be green. Hold at room temperature until eggs begin to turn grey, meaning they are close to hatching (can take up to 4 days), and then release into crop by broadcast if in veg or bioboxes if in flower.
To distribute egg cards, simply hang the cards evenly thoughout the canopy out of direct light and high enough to keep them dry during watering.
We recommend releasing the lacewings as soon as you receive them.
If immediate release is not possible, you may store the C. carnea for a short time of 1-2 days at 10°c and a relative humidity of 85%. Remember these bugs are cannibalistic so the less time they are stored the better!