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Saturday, August 15, 2015

Biological Warfare!

An annual problem in the Papa Stronsay greenhouse is the Red Spider Mite (Tetranychus urticae). This mite is very small and reproduces rapidly. It feeds on the cell-material of all kinds of plants, killing the cells on which they feed. When gathered in their hundreds-of-thousands, you can imagine the havoc they can wreak in the greenhouse! We do not use chemical sprays in our greenhouse, so each year we have to introduce a second mite, Phytoseiulus persimilis, which is the natural arch-enemy of the Red Spider Mite.  It can be ordered online, and arrives in the post!

Join Fr Jean Marie, F.SS.R. as he explains how it works.

1 comment:

Zephyrinus said...

Dear Reverend Fathers,

I've heard of Reds Under The Bed,
but never Under A Whole Greenhouse !!!

May God Bless you all in your labours.

in Domino

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