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This is a swelling caused by the mites
Plant galls are abnormal outgrowths of ...
Small woodland at field margin of agricultural crop land
Some kind of gall maker living on Prunus ...
Small, dark pink or red projections from leaves of some type of cherry. ...
These are apparently growths caused by tiny
with their saliva. The mites live and ...
Two small shiny red galls of about the same ...
These galls are commonly found on sumac ...
Two little galls shaped like towers or ...
powerful growth regulating chemicals produced by some insects or
Galls are abnormal plant growths which are ...
,I started to look for galls. Because the ...
Mites cause these red growths on the leaves ...
parasitic invasion of microscopic gall ...
-like structures about 1/16 to 1/8-inch in diameter. These are maple bladder ...
Galls are caused by many organisms living ...
The females of the cynipidae Plagiotrochus quercusilicis cause red