
Is milky spore safe to use?
Is Milky Spore Safe? Milky spore disease is specific for Japanese beetles and it won’t harm humans, other animals, or plants. It is safe to use on lawn and ornamental plants as well as vegetable gardens. There is no risk of contamination due to runoff into bodies of water and you can use it near wells.
What is milky spore made of?
Milky spore comes in a powder and consists of a bacteria. The first reason not to use milky spore is that it was manufactured to control ONLY Japanese beetle grubs.
Can milky spore be used to kill grubs?
Milky spore comes in a powder and consists of a bacteria. The first reason not to use milky spore is that it was manufactured to control ONLY Japanese beetle grubs. Unfortunately there are many more turf damaging grubs in NH and VT including Asiatic beetles, European and masked chafers, June and May beetles and armyworms.
Are nematodes and Milky spores harmful to humans?
Organic Lawn Pest Control: Milky Spores and Nematodes. Like beneficial nematodes, Milky Spores occur naturally and so are not toxic to humans and animals. Pesticides and chemicals do not effect Milky Spores, so they can be applied even if you have previously treated your lawn with chemical pesticides and fertilizers.

What happens if you inhale milky spore?
Milky spore is not toxic to humans or animals, but the spores are in a powder carrier form that can irritate eyes and throat. It also contains chalk. Wheezing, shortness of breath, tightness in the chest and coughing may occur in those with preexisting respiratory problems such bronchitis, emphysema or asthma.
Are milky spores safe?
Is Milky Spore Safe? Milky spore disease is specific for Japanese beetles and it won't harm humans, other animals, or plants. It is safe to use on lawn and ornamental plants as well as vegetable gardens.
How long does it take for milky spore to be effective?
Milky Spore Powder begins working as soon as it is applied as long as grubs are feeding. Once grubs are infected they will multiply the spore by several billion times and spread it further. In warm climates good control can occur in one to three years. In colder areas, it may take three to five years.
What is milky spore made of?
Milky Spore uses the naturally occurring bacterium, Paenibacillus popilliae. This bacillus primarily targets Japanese Beetle grubs, the soil-dwelling larval stage, before they become the destructive adults. These grubs target lawn and garden soil, causing unsightly damage to turf and crop loss where they are active.
Which is better milky spore or nematodes?
The nematodes will give more immediate control while milky spore inoculation is spreading. Masked chafer raster pattern. If the grubs in your lawn are identified as chafers or any species other than Japanese beetle larvae, Bp probably won't be effective.
Will milky spore get rid of moles?
The best long-term control is Milky Spore. Safe for the environment, this natural spore is harmless to fish, birds, bees, animals, plants and people. It kills grubs in the soil and remains active in the soil for up to 15 years. This is a great long-term solution for moles.
How often should you apply milky spore?
Milky Spore requires only one application, lasting ten years or more. It is most effective to apply Milky Spore in the summer and early fall.
What kills milky spore?
The primary method of managing Japanese beetle grubs in turfgrass is with the use of insecticides such as trichlorfon (Dylox), halofenozide (Mach 2), and imidacloprid (Merit). All these materials are highly effective in maintaining Japanese beetle grub numbers below damaging levels.
Does milky spore expire?
Answer: Milky Spore Powder has a shelf life of 3 years.
How much does milky spore cost?
Compare with similar itemsThis item St. Gabriel Organics Gardener's Supply Company Milky Spore 40 OzLawn and Garden Dispenser tube for Milky SporeAdd to CartAdd to CartCustomer Rating4.6 out of 5 stars (689)3.7 out of 5 stars (516)Price$8173$998Sold ByEsbenshades Garden CenterAmazon.com1 more row
Do you need to water in milky spore?
Milky Spore Powder does need to be watered into the soil with rainfall or irrigation after application, so rainfall actually helps the Milky Spore to reach the grubs in the soil.
How do you spread milky spore granules?
InstructionsFill the drop spreader with the Milky Spore Granular.Apply uniformly over the treatment area. ... Spread over the treatment area at the rate of 1 lb per 350 sq. ... Water the treated area and/or apply beneficial nematodes within 24 hours of application to soak spores into the soil.More items...
Is milky spore safe for chickens?
Answer: Milky Spore Lawn Spreader Mix does not affect pets, beneficial insects, fish, bees, birds, other animals, plants, or man. It is not a poison.
When should I treat my lawn with milky spores?
Milky spore can be applied anytime during the year, except when the ground is frozen. Fall is considered to be the best time to apply the treatment, as the grubs are close to the surface of the warm soil, feeding on roots.
Does milky spore have a shelf life?
Answer: Milky Spore Powder has a shelf life of 3 years.
How much does milky spore cost?
Compare with similar itemsThis item St. Gabriel Organics Gardener's Supply Company Milky Spore 40 OzLawn and Garden Dispenser tube for Milky SporeAdd to CartAdd to CartCustomer Rating4.6 out of 5 stars (689)3.7 out of 5 stars (516)Price$8173$998Sold ByEsbenshades Garden CenterAmazon.com1 more row
What Is Milky Spore Powder?
Milky spore powder or granules have been in use for about eighty years. Source: Mike Baehr
Should You Use Milky Spore Powder?
Grubs of the Japanese beetle are susceptible to milky spore disease. Source: Travis S.
Other Methods for Treatment
As mentioned in the application discussion above, nematodes (specifically Heterorhabditis bacteriophora, often shortened to Hb) are often used in conjunction with milky spore. You may be able to skip the milky spore altogether and instead use nematodes, which are a better option if you’d like to control a host of other pests and Japanese beetles.
Why is milky spore not used?
Milky spore comes in a powder and consists of a bacteria. The first reason not to use milky spore is that it was manufactured to control ONLY Japanese beetle grubs. Unfortunately there are many more turf damaging grubs in NH and VT including Asiatic beetles, European and masked chafers, June and May beetles and armyworms.
Can you use milky spore in lawn?
Updated June 24, 2019. According to a University of New Hampshire publication on milky spore disease, there are more reasons NOT to use this product than to use it in your home lawn. Milky spore has been around for decades and was the first biological disease to control Japanese beetle grubs. Milky spore comes in a powder and consists of a bacteria.
Can milky spores control Japanese beetle grubs?
So now you understand that even if milky spore could work, you would only be controlling one grub out of many …not good odds. Secondly, you must have sufficient numbers of Japanese beetle grubs in your lawn to promote the bacterial population enough to expand and spread out in the soil.
What is the name of the bacterium that causes milky spores?
Bacillus popilliae. Paenibacillus popilliae (formerly Bacillus popilliae) is a soil-dwelling, Gram-positive, rod-shaped bacterium. It is responsible for a disease (commonly called milky spore) of the white grubs of Japanese beetles . The adult Japanese beetles pupate in July (in the Northeast United States) and feed on flowers and leaves ...
Is milky spore harmful to birds?
Milky spore in the soil is not harmful to beneficial insects, birds, bees, pets, or people; and milky spore, like other bacteria, is highly survivable in drought conditions but suffers in temperatures of Zone 5 and colder.
What Is Milky Spore Powder?
Milky spore powder or granules have been in use for about eighty years. Source: Mike Baehr
Should You Use Milky Spore Powder?
Grubs of the Japanese beetle are susceptible to milky spore disease. Source: Travis S.
Frequently Asked Questions
A: No! The only organism affected negatively by milky spore is Japanese beetles.
What is milky spore?
Long before horticulturalists coined the terms “integrated pest management” and “biological controls,” the bacterium Paenibacillus papillae, commonly called milky spore, was commercially available to control Japanese beetle larvae, or grub worms. Although it isn’t new, it is still considered one of the best methods of control for Japanese beetles. After the larvae eat the bacteria, their body fluids turn milky and they die, releasing more of the bacterial spores into the soil.
How to apply milky spores?
Knowing how to apply milky spore is important for effective control. Place a teaspoon (5 ml.) of milky spore powder on the lawn, spacing the applications about 4 feet (1 m.) apart to form a grid. Don’t spread or spray the powder. Water it in with a gentle spray from a hose for about 15 minutes.
How long does it take for milky spores to work?
When using milky spore for lawns, it can take three years to achieve control of the insect in warm climates, and even longer in cooler areas. You can also use milky spore in vegetable gardens without fear of crop damage or contamination. Ideal soil temperatures for using milky spore are between 60 and 70 degrees F. (15-21 C.).
Can you mow with milky spore?
Once the powder is watered in, you can safely mow or walk on the lawn. One application is all it takes. Mil ky spore won’t completely eliminate Japanese beetle grubs from your lawn, but it will keep their numbers below the damage threshold, which is about 10 to 12 grubs per square foot (0.1 sq. m.). Although Japanese beetles can fly in ...
Is Milky Spore Safe?
Milky spore disease is specific for Japanese beetles and it won’t harm humans, other animals, or plants. It is safe to use on lawn and ornamental plants as well as vegetable gardens. There is no risk of contamination due to runoff into bodies of water and you can use it near wells.
How to apply milky spore to your lawn in 5 steps
Milky spore powder or granules (available online or wherever you buy garden supplies)
What is milky spore?
Milky spore ( Paenibacillus popilliae) is a bacterium that has been used for Japanese beetle control since the 1940s. When Japanese beetle larvae (aka grubs) ingest the spores of this bacterium, they get a fatal disease known as milky disease or milky spore disease.
How to tell if your lawn has Japanese beetle grubs
Remember, milky spore will only help your lawn if the problem is Japanese beetle grubs. If you’re dealing with any other pest or lawn disease, applying milky spore would be a waste of time and money.
When not to use milky spore
What if the grubs in your lawn are the larvae of other species of beetles, not Japanese beetles? Or what if you want to see results fast? Milky spore isn’t right for you in these cases. But that doesn’t mean you have to let the grubs win.
How does milky spore work?
Milky Spore is a natural bacteria that infects the grubs of Japanese Beetles with Milky Spore Disease. The disease paralyzes and kills the host grub. When the dead grub breaks down, it releases billions of new spores into the soil, which in turn infect and kill other grubs. An infected grub will die within one to three weeks of being infected by Milky Spores.
When to apply milky spores?
For the best results, Milky Spores should be applied when white grubs are feeding. Grubs feed during the Spring and Fall. Grubs feed more heavily in the Fall as they are building fat stores and preparing for Winter dormancy. Milky Spore applications begin working immediately if applied while grubs are feeding. Grubs take in the spores when they feed on grass roots. Optimal levels of control occur after one to three years of spore application (the lower timeframe applicable to warmer climates).
Is milky spores harmful to humans?
Like beneficial nematodes, Milky Spores occur naturally and so are not toxic to humans and animals. Pesticides and chemicals do not effect Milky Spores, so they can be applied even if you have previously treated your lawn with chemical pesticides and fertilizers. Milky Spore is harmless to vegetables, flower gardens, and water supplies. Birds and other wildlife are immune to the effects of Milky Spore as well. Your organic lawn and gardens will benefit from having more healthy birds around to feed on parasitic insects once you have restored the balance to your lawn’s ecosystem by doing no harm to species eating pesticide poisoned grubs and insects.