Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00097
 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 1971
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: VID00097
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


56-


AGRICULTURAL RESEARCH AND EDUCATION CENTER
LAKE ALFRED, FLORIDA


AREC-LA Mimeo
Series 71-20


CITRUS INSECT AND DISEASE SUMMARY
MID-FEBRUARY 1971

Statewide Index of Abundance


I I
End Jan Mid Fed Trend

Rust mite Lvs.


V--
Rust mite Frt.
High for
rust mite

Hi h fnr


Citrus red mite
O--a _C m____>
-~ O--c.


Texas C. mite


S
End Jan Mid Feb


Trend


HUME L~~ARy
---~L- -----




.F.A.S. 2- Univ. of Flori


I.F.A.S. Univ. of Florida


Pi_ Ihf


scales; white-
fly; winter
high for
CRM & TCM


----- Glover s
Purple s
S------>WFLY L
x- ----- Yellow s
0-----'-- Snow sc


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

Citrus Rust Mite: 76% of groves infested (Norm 75%); 53% economic (Norm 42%).
Population decreased and will continue to decline. However, it will remain above
normal and in the high range on both leaves and fruit. Highest districts are West (2.54)
South (2.08) Central (1.55) and North (1.46).
Citrus Red Mite: 52% of groves infested (Norm 36%); 19% economic (Norm 14%).
Population decreased temporarily but increase is expected soon. It is higher than
normal for February although still in the low range. Highest districts are South (1.08)
and Central (.74).
Texas Citrus Mite: 39% of groves infested (Norm 31%); 16% economic (Norm 11%).
Population of this mite will resume the upward trend. It is currently in the low
range but above normal for February. Highest districts are Central (.87) and South (.72).
Six-spotted Mite: 8% of groves infested; none economic. This mite will gradually become
more abundant.

Glover Scale: 82% of groves infested (Norm 78%); 6% economic (Norm 17%).
Little change is expected from the current moderate level which is near normal for
February. Highest districts are South (1.04) and West (1.00).
Purple Scale: 77% of groves infested (Norm 77%); 3% economic (Norm 9%).
Little change is expected from the current normal low level. Highest districts are
West (1.00) and North (.93).
Chaff Scale: 53% of groves infested (Norm 64%); none economic (Norm 9%).
Population will be low and below normal in all districts.
Black Scale: 22% of groves infested (Norm 36%); 8% economic (Norm 15%).
Population decreased to low level and will continue to be low and subnormal.
Highest district is East (.54).


Yellow Scale: 33% of groves infested (Norm 62%); 1% economic (Norm 14%).
The downward trend of the past month will change to an upward trend.
continue to be low and below normal.


Population will


Snow Scale: 30% of groves infested; 8% economic. Temporary decrease is expected.
Whiteflies and mealybug will remain at low levels.
Aphids will become abundant about mid-March.

Spray Notes: Rust mite will continue to be a threat in many groves and may require treat-
ment before the postbloom period. Spraying should be avoided if possible while the
blossoms are open.
The Florida Citrus Spray and Dust Schedule for 1971 is now available from the
Florida Department of Citrus, Lakeland, and from County Agricultural Agents.


600 February 16, 1971 WAS


-2.0




-1.5


-1.0


-0.5


W. A. Simanton




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