However, for low-maintenance lawns, even if the turf is not killed from grub feeding, the thinned and weakened turf may be prone to weeds and drought stress. Measure how much water you have applied by placing several coffee cups on the lawn and running the sprinklers until they fill a half to 1 inch deep with water. Florida residents should apply anytime from early April through early May. There are many products available, some with the same active ingredients. If the need should arise to use a curative compound, make sure to keep the infested lawn watered and fertilized and treat the area again with a preventive application the next summer or the problem will likely reoccur in the fall or the following spring. Weeds that flower again after mowing will not have the chemical directly on the flowers and are much safer for the bees.
Depending on which text editor you’re pasting into, you might have to add the italics to the site name. In Canada, it is a problem in Ontario and Vancouver, so Washington State is on the lookout for it also. At one garden center a clerk showed us two products, one containing only permethrin and one containing only bifenthrin, when we asked for products to control grubs. Although the bag often says apply anytime from May to Aug. To contact an expert in your area, visit http: Trichlorfon is more toxic to fish and birds than imidacloprid.
How to choose and when to apply grub control products for your lawn – MSU Extension
Both of these products also kill beneficial insects, including natural predators of pests and pollinators. This product was aeason sold as Bayer Advanced. Be sure the problem is grubs. Targeted Pests Grub Killer Plus will kill crickets, chinch bugs, grasshoppers, webworms, scorpions, ticks, earwigs, pillbugs and millipedes, among other soil-dwelling pests.
Mowing prior to making the application will avoid this problem by removing the flowers. They spend the winter as large grubs 0. To contact an expert in your area, visit http: Christmas tree, turf and ornamental plant update — May 19, One 32 ounce bottle covers 5, square feet of lawn.
Our research indicates they will kill percent of grubs when applied in September or percent when applied in late October. They are preventive products that work very well on newly hatched grubs present in July, but do not work well for large grubs found from September to May.
Follow the safety guidelines on the packaging. A half-inch of irrigation is when lawn sprinklers are run until a container like a coffee mug, or several mugs, fills to a level 0. As the turf begins to grow, some people will find patches in their lawn where the turf is thin or stunted.
Consequently, rainfall should not affect the performance of the product.
Bayer 12# Season Long Grub Control Merit | BFG Supply
By the end of October, they are revitlaizer grown. They are not as effective as the preventive compounds in reducing grub numbers. In Canada, it is a problem in Ontario sesaon Vancouver, so Washington State is on the lookout for it also.
However, even trichlorfon should not be evaluated for at least five days after application assuming it rains or irrigation was appliedand carbaryl may need three to four weeks to be effective. This is not true. Imidacloprid General Fact Sheet. Treats up to 10, sq. Check for the active ingredient in a grub product. Sod webworms, bluegrass billbugs and grubs on the horizon.
BioAdvanced Season-Long Grub Killer PlusTurf Revitalizer – 700715M
Since the aforementioned window of opportunity may vary throughout the country, rvitalizer recommend contacting your County Extension Agent for ideal application dates in your area. These two insecticides are the only options if high numbers of grubs are found in the fall and in spring before early May.
Bayer Grub Control vs. Preventive products are the most effective. Once attached, spray in long, even, sweeping motions. With a professional background in gardening, landscapes, pests and natural ecosystems, Jasey Kelly has been sharing her knowledge through writing since and has served as an expert writer in these fields.
To have a digest of information delivered straight to your email inbox, visit http: This product works best when applied before the grubs hatch. The label lists the legal rate at which the product can be used. Consider carefully whether it would be best to wait and apply a preventive later. The two products rely on different insecticides and different methods of application.