VANCOUVER ISLAND BONSAI CLUB

Bonsai and Scale Insects

by Mark Paterson

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An adult scale insect

The sticky residue that I noticed before I noticed the scale

Scale insects suck the sap from plants

Scale insects look like small, brown blisters on the leaves & stems of plants. They exude a sticky "honeydew" that falls fiom the insects to the leaves below
Scale on a branch, both adults and immature forms Immature scale on the leaf Sticky leaf. On the branch are more scale insects
These are two pictures of the same branch, covered in scale    
In all I think I scraped 300 scale off this Meyer's Improved Lemon. Then I sprayed it with Safer's Soap -a fatty acid pesticide, to kill leftover adults, juveniles, and eggs. It took two applications over the course of a week to get rid of them all.

 

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