Can you tell me the best treatment you have I can get to control oyster scale on my Japanese Myrtle?
During the cool season like winter, spray them with something like mineral oil. This will effectively suffocate the hibernating stages like eggs and pupae.
Once it gets warm (60 degrees or more), use MAXXTHOR EC and BOOST.
Maxxthor is oil based and so it does a good job of penetrating tough to kill insects like scale and will the job quickly during the spring and summer.
Use .3 oz per gallon of water and retreat weekly until you see it crumbling away. This usually takes three treatments. Also, only spray in the evening, right before dark, so the treatment can remain most effective all night long.
Add BOOST to the tank mix to insure you get the needed penetration. Boost will help by dispersing the treatment “into” the scale’s shell. Boost essentially makes water more “slippery”.
Add .3 oz per gallon with the .3 oz of Maxxthor.
To spray, use a good PUMP SPRAYER.
Lastly, for season long scale control, drench any plant or tree you want to protect with PROTHOR. Use .2 oz of concentrate per inch of tree trunk.
So if Japanese Myrtle is 10 inches wide, use 2 oz in 3-4 gallons. Make 5-8 holes in the ground around the main trunk, about 1-2 feet out where you won’t hurt roots when digging. The holes only need to hold the mixture when you pour it out so they don’t have to be more than an inch wide and usually 10-15 inches deep will work. Use a 5 gallon pail to mix up the 3-4 gallons and pour out the solution slowly into the holes.
Prothor will take 3-5 weeks to be absorbed and have an impact so plan on spraying one of the options above for fast results if you have activity. But once Prothor gets into the treated plants, it will kill anything trying to eat it for up to a year. It also works great for season long grub control for protecting your grass.
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