Milky Spore Granular for Organic Grub Control - 20 lb
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Milky spore is a bacteria (Paenibacillus popilliae) that causes milky disease in Japanese beetle grubs. The grubs feed on the bacteria while also feeding on roots, which infects the grubs. The infected grubs then spread the disease through the remaining soil. Infected Japanese beetle grubs die about 1 week after infestation.
Milky spore only affects grubs, so it poses no threat to people, animals, plants or beneficial insects.
20 lbs of Milky Spore Granular treats up to 7,000 sq ft
For use on lawns and other grassy areas around homes and on ornamental gardens, flower beds, mulched beds, vegetable gardens, ornamental ground covers and around trees and shrubs.
Milky Spore's effectiveness can be enhanced by the use of NemaSeek beneficial nematodes. They are unharmed by the infective bacteria and help spread it as the nematode moves through the soil pursuing grubs, weevils and larvae. Apply Milky Spore dry, then water in the NemaSeek for complementary control of grubs.
How do you use milk spore granular?
Milky spore granules are designed to be used with a drop type spreader. Cover the area uniformly by starting at the borders and moving towards the center. Make parallel passes with the spreader, walking at a steady pace to ensure even distribution of the granules.
Water the treated area and/or apply beneficial nematodes within 24 hours of application to soak spores into the soil. Make sure you do not mow the grass before the spores have been watered in.
How does milky spore work?
After milky spore is introduced into the soil, it will lie dormant until Japanese beetle grubs begin feeding on roots where the bacteria is present. Once ingested, the spores multiply inside the grubs with a single spore creating up to 3 billion new spores in each host grub.
These spores kill grubs about a week after infection. As the grub decomposes, the billions of spores it contained are released back into the soil to start the whole process again. Over time, milky spore fills out the soil creating a soil environment that Japanese beetles simply cannot survive in.
When should I put down milk spore?
The best time to spread milky spore is in the fall when grubs are feeding on roots to add fat for the winter. Milky spore works best when the soil is at least 65° F, so it should be spread before temperatures begin to drop, It does last in the soil for several years, so you can spread it before fall with good results.
Does milk spore harm earthworms?
Milk spore only causes milky disease in grubs and does not harm any other organisms in the soil, including earthworms.
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