Ask a Question
Notify Me On Question Update
Email this Question
How can I keep my pears and apples worm free?
Rate This FAQ
If you want worm-free apples and pears this fall, you should act now to protect them from the codling moth, a major apple and pear pest. Using insecticide sprays is probably the easier method of preventing worms from getting into your fruit. There are also a number of other preventable steps you can take to keep worm numbers down.
- Pick up and destroy any fruit that drops prematurely from trees in June and July, since the fruit that falls us usually infested with worms. The worms will develop into new months that lay eggs, hatch worms and invade your crop again later in the summer.
- Place corrugated cardboard bands (2-3 inches wide) around trunks of apple and pear trees with the fluted side against the bark. This will proved a good pupation site for the insect larvae before they emerge as moths once again. Use trunk bands from late June through the early fall. Remove bands occasionally to check for the presence of fine silk webbing with worms or pupae inside, then destroy the bands and replace them.
- The best defense against worms invading your fruit is to use a registered insecticide. Based on the first activity of codling moths in the Cache Valley area and the temperatures since then, it is predicted that the first insecticide spray should be applied to apples and pears by June 1. First sprays should go on five to seven days earlier for warmer areas of Northern Utah. Check with your local county Extension agent for an update on when to spray in your area.
- Fruit will need to be protected until you pick it or until the first part of September. Reapply sprays based on the protection interval of the product you use (Imidan, 18-21 days; Diazinon, 10-14 days; Malathion, 5-7 days; Dipel or other Bt products, 3-5days).
Submit Your Suggestion
Other Questions In This Topic
- I am wondering if the worms in cherries are safe to eat? They are so small it doesn't really bother me to eat them but I don't want to if they could make me sick or continue to live and grow inside me.
- I would like to plant 2 plum trees and would like to make sure they have sufficient pollination. I would definately like a Italian Plum (Prune) and some other plum that is freestone and good fresh eating with a great flavor. I would like a Satsuma but have read that the european plum and the Japanese plum varieties are not compatible as far as pollination. Would the Santa Rosa be a good substitute for the Satsuma?
- What is the proper time to fertilize fruit trees? Also, is there only one appropriate time of year to prune fruit trees?
- We have five acreas in Cedar City and would like to plant some nut trees. Can you suggest some types/varieties that would do well here? Would any work or only some?
- Is there a variety of Nectarine which will grow well here in northern Utah? Can I grow just one tree? Is it okay to grow it near a peach tree or will they cross-pollinate and cause problems? Do they have the same risk of disease as peaches do?
- We bought an apple tree to plant on arbor day,but still haven't got to planting it. I've tried to keep it watered and in the sun, but the poor thing is struggling. The leaves appear to be dying on the ends. Will it still survive if we get it in the ground? Also can it be planted in an area that gets a lot of water? It is a Braeburn tree.
- How do I prune cherry trees?
- I have many different types of fruit trees in my yard. Yellow Delicious, Gala, Jonathan, Macantosh, Elberta Peaches, Stanley Plums, Danjo Pears, Barlet Pears, Apricots, Bing Cherries, and Elderberries. When is the best time to harvest each of these?