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Roberta from Florida writes

Will Bifen IT kill pine beetles or atleast deter them from other pines? I am located in Florida.


Bifen IT is labeld to kill the Pine Shoot Beetles (Adults) when applied at 0.5 fl oz to 1.0 fl oz per gallon of water. 

Unfortunately there is no easy solution when it comes to pine beetles. Infected trees should be cut down (before the newly hatched beetles fly out of the trees in the spring/summer) and the wood burned or chipped, while other still healthy trees should be sprayed annually to protect them. Because of the natural boring behavior of the beetle they are protected from topically applied insecticides and systemic insecticides (those injected into the tree or applied as a root drench) have proven ineffective for pine beetle infestations. Healthy trees can be protected before the beetles attack by topically spraying them with a synthetic pyrethroid,

You should contact your local cooperative extension office to find out the best time to start spraying in your region.


Answer last updated on: 05/19/2021

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