Ask a Question
Notify Me On Question Update
Email this Question
My roses and boxelder trees have sticky (sap) leaves, what is causing this problem?
Rate This FAQ
Aphids. This is a large group of insects, usually found in considerable numbers on stems, leaves and flowers of many plants, causing leaves to curl under and entire plants to wilt. Aphid nymphs and adults suck sap from plants and secrete "honeydew", a sugary excretion that attracts other insects (especially ants). Honeydew provides a good environment for the fungus “sooty mold”, a black, powdery fungus on leaf surfaces.
Recommended aphid control is: spray off plants with a stiff stream of water, knocking pests to the ground where predators will feed on them, or spray with insecticidal soap. As a last resort, chemicals such as Neem may be used. Follow label instructions.
Submit Your Suggestion
Other Questions In This Topic
- I need to know what is best for killing vines? I have a fence full and I would like to get rid of them.
- I live in rose park and am selecting trees to add to my backyard. I have full sun and dark rich soil. I want a good shade tree but am not sure what would be best. I have been looking at different types of maple trees but am wary about their growth rates. Are there any trees that you could recommend?
- I want to switch my current lawn (bluegrass with some bermudagrass infestation) to a low-water and low-growth grass. I have a front lawn that's in shade most of the day, and the back lawn is mostly in sun. Will dwarf tall fescue work in this situation? Do you have any recommendations for the best DTF variety(s) to use? Also, will the bermudagrass be able to survive on less water and compete with the fescue?
- We have a lot of scrub oak around our home. In some spots we have some ground cover and other area are bare. We would like to add a nice ground cover to mix in with the oak in these bare areas. Do you have suggestions for ground cover? Also, in one particular area, we have a large amount of grass growing in the ground cover surrounding the scrub oak. What is the best way to get rid of this grass? Is there a ground cover that can overtake the grass?
- Do you have tips for safely removing snow from sidewalks and driveways?
- Is it workable to grow scrub oak from acorns, and if so, I'd appreciate direction. I live near Foothill Drive in SLC.
- I am looking for a native grass, or a grass that behaves as a native, does not need irrigated once established, does not need mowed, for a hill in a St.George back yard. Cottonwood trees shade the area but it also gets sun. I was going to use Buffalograss seed, but some people at a nursery in St.George said that it is too hot for Buffalograss. Do you have any suggestions?
- When is the best time of year to reseed my lawn? The weeds and spurge are out of control. Should I rototill the lawn to remove all the weeds first?