Ladybugs and Aphaids

Does anyone know how long it takes for Ladybug eggs to hatch so the larvas go to work?

Ken
Ohio extention folks think:
" length of the life cycle varies depending upon temperature, humidity, and food supply. Usually the life cycle from egg to adult requires about three to four weeks, or up to six weeks during cooler spring months. In the spring, overwintering adults find food, then lay from fifty to three hundred eggs in her lifetime (tiny, light -yellow eggs are deposited in clusters of 10 to 50 each) in aphid colonies. Eggs hatch in three to five days, and larvae feed on aphids or other insects for two to three weeks, then pupate. Adults emerge in seven to ten days
Gordon

good info

Thanks Gordon. We noticed aphids in the Brug-house and ordered a batch of Ladybugs. I sprayed with Malathion on a few Brugs to at least cut the number of apheds down so the Ladybugs would not have more than they could handle. The Malathion just made the Aphids mad and when the Ladybugs came, I noticed the ones that landed on the only plants that were sprayed, died in the pot. The Ladybugs like to stay up high where it is warmer but the aphids like the plants on the ground. We have three Green / hoop-houses and put some of the Ladybugs in each. We are ordering more and will put all of the second batch in the Brug-house that has the real problem. The aphids have multiplied so fast I sprayed again today with dish soap and noticed lots of Ladybug eggs under the leaves. I only sprayed the Brugs that were really infested and hope the larva that will hatch will be enough to get the upper hand.

kenboy