Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00056
 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 1969
Copyright Date: 1966
Frequency: semimonthly
regular
 Subjects
Subject: Citrus -- Diseases and pests -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
periodical   ( marcgt )
 Notes
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: VID00056
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
/oO
~( yq CITRUS EXPERIMENT STATION
f- LAKE ALFRED, FLORIDA CES Mimeo Series 69-24
S5 '-? LAKE ALFRED, FLORIDA
CITRUS INSECT AND DISEASE SUMMARY
END OF FEBRUARY 1969

Statewide Index of Abundance
Mid End Mid End
Feb. Feb. Trend Feb. Feb. Trend


Rust mite Ivs. HUME LIBRARY


1.5 -MA-- 1 1969
_-1. 50 -High for
rust mite IFA.S

.1.0 _High for iv. of Florida
scales;
Glover scale
winter high
for CRM & TCM -
C. red mite Yellow scale
-0.5

Texas C. mite


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

Rust Mite: 75% of groves infested (Norm 62%); 54% economic (Norm 41%).
Population is above normal and well into the high range for the state as a whole but
varies considerably among groves and districts. It is expected to hold near the current
level. Highest districts are South (2.29) West (2.07) and North (1.83).
Texas Citrus Mite: 27% of groves infested (Norm 31%); 12% economic (Norm 12%).
Population is near the normal low level for this date. Although decrease is expected,
some groves will show increase and a few heavy infestations are likely to occur. Highest
districts are North (.53) South (.46) and Central (.45).
Citrus Red Mite: 30% of groves infested (Norm 38%); 7% economic (Norm 15%).
Population is below normal and in the low range. Gradual increase is expected with
some groves developing heavy infestations. Highest districts are West (.62) East (.55)
and South (.35).
Six-spotted Mite is present in 6% of groves as light infestations only. This is near
normal for this date.
Glover Scale: 75% of groves infested (Norm 79%); 4% economic (Norm 18%).
Purple Scale: 58% of groves infested (Norm 78%); 2% economic (Norm 9%).
Yellow Scale: 75% of groves infested (Norm 65%); 4% economic (Norm 13%).
Black Scale: 20% of groves infested (Norm 33%); 4% economic (Norm 14%).
Chaff Scale: 33% of groves infested (Norm 61%); less than 1% economic (Norm 10%).
The above scales continue to be below normal abundance and in the low to moderate
range in all districts. Little change is expected.
Snow scale is present in 16% of groves and is moderate or heavy in 6% of groves.
Increase is expected.
Whitefly and mealybug populations are below normal and of little importance at this time.
Whiteflies are expected to increase.
Aphids are starting to appear in scattered groves. A strong increase is expected the
last week of March.

Spray Notes: New foliage growth is occurring at the normal time this year but bloom is
expected to occur later than average.
March is a good time to evaluate the nutritional needs of trees and the scab,
melanose, black scale and snow scale situations.


625 March 6, 1969 WAS


W. A. Simanton




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