Ask a Question
Notify Me On Question Update
Email this Question
My raspberries and red and very sweet and now I have found thread-like worms on the fruit (about 2-4 in a bowl) when washing. What are they and how do I treat the fruits? They are black or grayish and threadlike and about 1/ to 2/3 of an inch long.
Rate This FAQ
It sounds like you might have the western raspberry fruitworm, but it is hard to know for sure without a sample. This is a beetle. The adults will feed on the leaves in spring and lay eggs on the fruit. The larvae feed within the developing fruit for 5-6 weeks, and are especially noticed at harvest. The larvae, however, are whitish and only about 1/3-inch long. The larvae then drop to the ground to overwinter as pupae in the soil. Treatment is targeted at the period of egg hatch, just at pre-bloom and again post bloom, if necessary. Spinosad is an excellent, safe product to use, but carbaryl and malathion will also work.
These larvae can be washed out, as you have done, and they are also killed in the canning or freezing process.
If possible, please bring a sample of the damaged fruit as well as the larvae to your local Extension office, and they can send the sample to the Utah Plant Pest Diagnostic Lab. Or, you can visit the Web site for forms and mailing instructions: www.utahpests.usu.edu/uppdl. This way, we will be recommending the right treatment for the right pest.
Submit Your Suggestion
Other Questions In This Topic
- Sandy, Utah area (foothill benches. I am seeing sparse (not dense threads or tent-like)spider webs spanning approx 1-2 inches in the crotches of various limbs on scrub oak (no bugs or spiders are visible, however, did recently see only one yellowish/brown spindly pointed legs/body spider on limb which was about 1/2 - 3/4 inch if legs were spread from end to end). I've never seen spider like it before and can't identify on internet or books. Any thoughts, advice, or place to reference on what and how to treat? Scrub overhangs patio and everyone is paranoid to sit under trees. This is only affecting a few trees near pation, not seen on all scrub oak on property.
- What insects attack strawberries and what is the recommended control?
- We have a deck that holds a raised hot tub about 3 - 4 feet off the ground (it's on a wood stand). Unfortunatley, bees or wasps (not sure which) have decided to use the insulation underneath the hot tub as their home. Help! I have elementary age kids that are always outside. How do I get rid of them?
- I had a small fly with speckled wings basically destroy my peaches this year, about the size of a small "housefly". They lay eggs through the skin that go to the pit and then if left hatch into small worm type larvae. They got into every peach, but did not start getting there until the peaches were starting to ripen. It at first looks like a small round spot, but with time rots the fruit and turns it brown. What are they and how do you get rid of them?
- We have flying, black bugs with orange/red spots by the eyes. They are all over our year old peach trees. Do you have any idea what they could be and how we can get rid of them?
- We have a lot of pill bugs in our vegetable garden and strawberries. How can we get rid of them?
- I live in Bloomington Just south of Saint George, Utah. About a week ago I noticed hundreds of little greenish/yellowish flying bugs. Like I said they have been here about a week and they are not going away. I have lived in the area for about six years now and have never seen them before. Do you have any idea what they are and how I can control them? Regards Randy
- Help! I have a gigantic ant problem (millions of small black ants) in my garden. They are everywhere: in the flower beds, the veggie garden, the lawn, under the sidewalks and driveway. I have tried the sprays and spreadable pesticide from Lowe's, but nothing seems to work. They seem to multiply by the day, and are making work in the garden creepy and painful (they bite too). What can I do? There is no obvious food source around; except they seem to be eating the iris' roots. I live just above Orchard Drive and Bountiful High School. What can I do?