Title: Citrus insect and disease summary
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00066150/00014
 Material Information
Title: Citrus insect and disease summary
Series Title: AREC-LA Mimeo series
Physical Description: v. : ; 28-34 cm.
Language: English
Creator: Citrus Experiment Station (Lake Alfred, Fla.)
Agricultural Research and Education Center (Lake Alfred, Fla.)
Publisher: Citrus Experiment Station.
Place of Publication: Lake Alfred Fla
Publication Date: End February 1967
Copyright Date: 1966
Frequency: semimonthly
Subject: Citrus -- Diseases and pests -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
periodical   ( marcgt )
Issuing Body: Issued by the Citrus Experiment Station (Lake Alfred, Fla.) <July 1966-Jan. 1971, later called Lake Alfred (Fla.) Agricultural Research and Education Center, Feb. 1971-Aug. 1972>.
General Note: Description based on: Mid July 1966; title from caption.
General Note: Latest issue consulted: End of August 1972.
 Record Information
Bibliographic ID: UF00066150
Volume ID: VID00014
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 71265791
lccn - 2006229397

Full Text



Statewide Index of Abundance
Mid End d Mid End T
Trend Trend
2.0 Feb. Feb. Feb. Feb.

Rust mite

-1.5 .---.
High for Scales
rust mite
C. red mite High for Glover
S1.0 High for .-- -.
o ----- =-- scales; .----->Purple
-C winter high ->Yellow
Texas C. miteor

NOTE: Only pests or conditions of general or current interest are reported.
Forecasts are for 1 month in advance unless otherwise indicated.

Rust Mite: 71% of groves infested (Norm 58%); 54% economic (Norm 35%).
Population continued in the high range and is at the highest February level recorded
in 16 years. It will remain high. Highest districts are South (2.17) West (1.60) Cen-
tral (1.55) North (1.39) and East (1.10).
Citrus Red Mite: 56% of groves infested (Norm 34%); 27% economic (Norm 12%).
Population is above average and in the moderate range. Decrease is expected.
Highest districts are West (1.20) and North (1.17).
Texas Citrus Mite: 49% of groves infested (Norm 26%); 29% economic (Norm 8%).
This mite continues to be at a record high level for February. Population is still
in the moderate range and is expected to hold near current level. Highest districts
are West (1.30) and North (1.10).
Glover Scale: 84% of groves infested; 17% economic. Population is near normal and in
the high range. Slight increase is expected. Highest districts are East (1.22) Cen-
tral (1.14) and South (1.14).
Purple Scale: 80% of groves infested; 11% economic. This scale is near normal moderate
abundance. It will increase slightly but will not produce heavy infestations. Highest
district is Central (1.10).
Yellow Scale: 70% of groves infested; 10% economic. Population is near normal and in
the moderate range with little change expected. Highest districts are Central (.96) and
East (.96).
Chaff Scale: 59% of groves infested; 4% economic. Population is below normal and low.
Little change is expected. Highest district is East (.74).
Black Scale: 46% of groves infested; 12% economic. Population is above normal for
February but is in the low range. Slight increase is expected. Highest district is
East (.87).
Snow Scale: 6% of groves infested; 3% are moderate or heavy infestations. Population
has increased during the past 4 years and is now at the highest level in 16 years of
record. All infestations of this pest should be considered of economic importance
because of the potential for spread and the difficulty of control.
Whitefly and mealybug are near normal low levels of abundance. A few aphids have
appeared in scattered groves.
Spray Notes: We are entering the bloom period this year with high populations of rust
mite, Texas citrus mite and snow scale. Glover scale, yellow scale, black scale, purple
scale and citrus red mite also are present in threatening numbers. In fact, a composite
population of our major pests is currently 30% higher than the average for February. Thus,
the postbloom spray will be-of extra importance this year.

650 March 2, 1967 WAS

W. A. Simanton

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