Just curious if any of you use grub killer in your yards and if so, which are the safe ones? We have tons of moles so I figured if I kill the grubs I can get rid of the moles since my mole traps and baits arent working.
I have used milky spore to eliminate Japanese beetle grubs in my yard. You will want to wait to apply it when it warms up a bit. You might need to apply it a second time to help the spore establish in the soil, but once it does your good for quite a while, like a decade.
As a chemical free but somewhat more barbaric means of getting rid of moles...use a water hose to flood the tunnel and a pitchfork when you see the nose pop up for air. Extremely effective if you have the time and inclination. Just saying.
Good to know, thanks! As far as flooding the tunnels, I'm actually shocked all the rain we've gotten hasn't flooded them naturally but that does sound fun to try haha. Milky spore sold at regular stores or do I need to order it?
We had a large farmer here, 2000 plus acres under tillage, that used the Rodenator with great success. The commercial is not a spoof. It uses propane and oxygen as a fuel. Pulling a trigger ignites the gas mix and boom (literally) your ground hogs are dead. Did not think about using it on moles. This could be fun!
You can kill every grub within a mile of your place and you won't effect the mole population enough to have an impact.
Their primary food source is earthworms. But don't let that deter you if the grubs are adversely affecting your turf.
SHB can't be stopped by killing the grubs in the ground because the adults fly in from miles around. You can stop them from multiplying near your hives by killing the grubs in the ground, doing yourself and neighboring beekeepers a favor.
Milky spore is not effective on SHB, totally different critter.
GardStar is the only labeled pesticide for SHB.
Active ingredient is permethrin.
Apply as coarse spray or watering can to the ground under and around the hive so the larvae come in contact with it as they leave the hive to pupate in the ground.
Ground does not need to be saturated just surface layer.
Apply early to reduce the increase of adults that come from the early survivors while the ground is still cool. May need to reapply June/July to slow down the population explosion that occurs when the warm soil enhances the successful pupation rates.
It is deadly to bees if you drop a frame on treated ground.
I've seen nematodes mentioned as controls for both SHB and Japanese beetle larva. Of course there are a gazillion and four species of nematodes so some research would need to be done to see if the same critter will attack both pests.
I wonder what further imbalances are caused when you kill all the grubs in the area and for that matter all the moles. However if it is done, it should be as humanely as possible, life forms feel pain, important to remember for those who have forgotten.
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