Citrus Rust Mite
[Phyllocoptruta oleivora (Ashmead), family Eriophyidae]
is the number one citrus pest. Only 7 to 10 days may be needed for the
development of a new generation under conditions of high humidity and temperatures
above 80oF. Infestation is usually greater on the east side
of trees and on abaxial leaf surfaces. Damage may occur on leaves, green
stems, and fruits. Infestation on the fruit may lead to russeting and diminished
size. Fruit quality is rarely affected, but affected fruit are graded lower
as fresh or processed fruit. The mite is wedged-shaped, wider at the head,
with only four legs located near the mouth and two false legs at the posterior
end. Numerous segments or transverse rows of minute spines or furrows giving
the appearance of segments are found on the abdomen. Young are bright yellow
in color, becoming darker with age. Yellow spherical eggs are deposited
singly or in clusters.
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This site is maintained by Dr. Laurence Sistrunk, Dept. of Hort. Sci., Texas A&M University