All about TreeAzin and neem

Ontario Gardener Magazine - - LOCAL DIRT -

To date in On­tario, the only rem­edy for trees af­fected by EAB is a prod­uct called TreeAzin, de­rived from neem tree seeds. Ap­par­ently, TreeAzin is the ex­tract of a par­tic­u­lar chem­i­cal, azadirachtin, which is known to be ef­fec­tive against about 200 in­sects by in­ter­rupt­ing feed­ing and growth.

This chem­i­cal has been reg­is­tered by Health Canada as a pes­ti­cide to the com­pany, Bio­For­est Tech­nolo­gies Inc., which is owned by the Cana­dian For­est Ser­vice.

Be­cause Health Canada is­sued a num­ber of cease and de­sist or­ders a few years ago to peo­ple who were sell­ing neem prod­ucts as a prod­uct to com­bat the red lily leaf bee­tle, con­fu­sion de­vel­oped over its le­gal­ity in Canada. Now Health Canada says that neem oil is in it­self not a banned prod­uct. It can be pur­chased and sold in Canada but it is not to be com­mer­cially used as an in­sec­ti­cide – nor is it to be sold as a leaf shine (no ex­pla­na­tion why). The only neem prod­uct reg­is­tered as a pes­ti­cide in this coun­try is TreeAzin.

It is sold through pro­fes­sional tree ser­vices along with an in­jec­tion method that in­tro­duces the prod­uct di­rectly to the xylem sys­tem of the tree, where it kills eggs and lar­vae and sys­tem­i­cally en­ters the leaves to kill the feed­ing bee­tle it­self.

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