Dormant Spray

big rockpile

Active member
Hardiness zone
6b
I'm looking at All Seasons Dormant Oil.

Was told the Oil could kill the plant.???? I don't think so but coming to you guys and Gals.

I'm thinking the Oil will help it stay with the plant.

big rockpile
 
Dormant oil is not a type of oil it's any oil applied during a plant (tree or shrub's) dormant period to kill any eggs that would hatch out in spring. Things like Neem can be used all year.

People used to just spray soybean or any other cooking oil during dormant season to kill eggs on plants but now we have other horticultural oils that won't cause damage. Just use Neem, it works on everything.
 
"The Oil" is the active ingredient, the water you add is a carrier.
I would only apply it in winter when the shrub,tree is completely dormant. In which case it won't kill the plant.
 
Dormant oil is not a type of oil it's any oil applied during a plant (tree or shrub's) dormant period to kill any eggs that would hatch out in spring. Things like Neem can be used all year.

People used to just spray soybean or any other cooking oil during dormant season to kill eggs on plants but now we have other horticultural oils that won't cause damage. Just use Neem, it works on everything.
Maybe you have had no problems but I started using Neem and it would not work most the time.

So I'm using what I find that works and still organic.

big rockpile
 
"The Oil" is the active ingredient, the water you add is a carrier.
I would only apply it in winter when the shrub,tree is completely dormant. In which case it won't kill the plant.
Nigel, is that what we call winter tar wash? The stuff we use for trees? Surely, if it's the same, we wouldn't use it on vegetables? I agree with @Anniekay about using neem oil for bugs otherwise.
 
Nigel, is that what we call winter tar wash? The stuff we use for trees?
@Tetters that was my first thought, but it isn't. Winter tar oil wash which was a by product of coke production and smelt a bit like old fashioned creosote. It disappeared about the same time proper creosote and original Jeyes fluid became unavailable. I certainly wouldn't have used that on anything green and growing.
The stuff mentioned in the OP is 98% Mineral Oil and appears to work by suffocating the bugs, my concern is that it might do the same to growing leaves and that's why I would only use on dormant trees and shrubs if at all.
 
@Tetters that was my first thought, but it isn't. Winter tar oil wash which was a by product of coke production and smelt a bit like old fashioned creosote. It disappeared about the same time proper creosote and original Jeyes fluid became unavailable. I certainly wouldn't have used that on anything green and growing.
The stuff mentioned in the OP is 98% Mineral Oil and appears to work by suffocating the bugs, my concern is that it might do the same to growing leaves and that's why I would only use on dormant trees and shrubs if at all.
Thanks Nigel.
 
@Tetters that was my first thought, but it isn't. Winter tar oil wash which was a by product of coke production and smelt a bit like old fashioned creosote. It disappeared about the same time proper creosote and original Jeyes fluid became unavailable. I certainly wouldn't have used that on anything green and growing.
The stuff mentioned in the OP is 98% Mineral Oil and appears to work by suffocating the bugs, my concern is that it might do the same to growing leaves and that's why I would only use on dormant trees and shrubs if at all.
I remember Creosote. We creosoted fence with a big paint brush, back in the day, and you had to completely cover up with waterproof clothing, then vaseline your exposed skin and wear goggles. One tiny bit of bare skin showing and you ended up with big red blisters !! I'm glad they banned that stuff !!
 
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