Ask a Question
Notify Me On Question Update
Email this Question
I have spider mites on my IIiamna rivularis. It looks like I also have spider mites on my Mirabilis jalapa. I don't remember of having any problems with growing Mirabilis jalapa before. They have always been an easy plant for me to raise. I have read the article on spider mites and I am wondering if I should just let them go or buy an insecticide like Bayer Advanced 3 in 1 Insect, Disease and Mite control. The spider mites are taking over my yard.
Rate This FAQ
Spider mites are most active during the hot dry months of the summer - if there is large infestation you may actually see "webs" thereby the name of spider mites is that they produce silk like webs. The actual spider mites are too small to see without a magnifying glass or under a microscope. The result of spider mites on your plants is a speckled mottled appearance and yellowing. A way to control spider mites it to hose the underside of the leaves to knock off the mites. Usually a chemical control is not necessary, because these general broad spectrum insecticides have the potential of harming beneficial insects in your garden. Also there are predatory mites that feed on spider mites that would be knocked out and often times, the target pest becomes a bigger problem because the natural predators are killed off by the chemical control. Another method would be use an insecticidal soap or summer horticulture oil sparingly (oil and soap in hot months may burn leaves) to control the mites. Horticultural oils can be used on perennial and woody ornamentals during the summer at the 1 to 2 percent rate. Higher rates of horticultural oil (3 to 4 percent) or dormant oil are useful for killing mite eggs and dormant adults in the fall and spring. The insecticidal soaps are useful in the warm season. Remember that mites are very tiny and soaps and oils work by contact only. Therefore, thorough coverage of the plant is necessary for good control.
Submit Your Suggestion
Other Questions In This Topic
- 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?
- We planted linden trees this year and wrapped the trunks with white corrugated tubing to prevent sun scald in the winter. In looking at leaf damage on the outside border of the leaves, I noted that there were literally hundreds of small gray/black flying insects clustered under the tree wrap. What might they be and are they responsible for the chewed leaves? What treatment is needed?
- How do I get rid of nightcrawlers? My lawn is getting real lumpy.
- I have these little tiny beetle bugs. I suspect they are the mexican jumping bug thing. They are all over my tomatos, they eat the leaves until I wonder if the tomatoes will survive. What can I do to get rid of them? P.S. They eat my potato plants too.
- I found a possible red and blue leaf hopper on a plant in my yard. Some experts I have contacted say we don't have them in the west. Could it be identified by you to species if I catch one and bring it in? I do have a photo of it.
- We have lots of large, brown, fat beetles around our house this year. Any idea what they are, and if they are a problem for our plants and flowers?
- What insects attack strawberries and what is the recommended control?
- I have been fighting a battle with snails and slugs for the past 10 years. I can't find diatomaceous earth that is free of serious pesticides and I can use around my vegetables. (It seems to be more like typical non-garden pesticide in the form I find it.) I also wonder about copper barriers and what sort of copper I could use for that.