Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00122
 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 May 1972
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: VID00122
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




:5


Apr. Mid-May Trend





Rust mite vs---.
Rust mite Ivs.


High for


Imites


Texas C. mite





S0-d -0-mi
C. red mite


Hieh for


scales;
whitefly


End Apr. Mid-May Trend








--> WFLY-L

r7


Black scale
Glover scale


x- -x- --> Snow scale


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: 74% of groves infested (Norm 61%); 54% economic (Norm 41%).
Population is expected to decrease but will remain above normal and in the high range.
New fruit will develop important infestations by mid-June in many groves. Highest districts
are South (2.62) West (2.00) and Central (1.92).
Texas Citrus Mite: 45% of groves infested (Norm 49%); 25% economic (Norm 26%).
Population will advance into the high range but is not expected to exceed the normal
abundance for June. Highest districts are Central (1.14) South (.96) and East (.86).
Citrus Red Mite: 31% of groves infested (Norm 51%); 5% economic (Norm 25%).
This mite is much below normal abundance and is expected to remain in the low range
despite a June increase. Highest district is Central (.46).
Glover Scale: 79% of groves infested (Norm 83%); 4% economic (Norm 22%).
Although this is the most numerous scale on citrus,infestations are lighter and fewer
than in any May since 1963. Slight increase is expected. Highest district is West (1.00).
Purple Scale: 76% of groves infested (Norm 80%); 5% economic (Norm 10%).
Little change is expected from the current moderate and subnormal level. Highest
district is North (.93).
Chaff Scale: 60% of groves infested (Norm 61%); 1% economic (Norm 9%).
Population is below normal and in the low range in all districts. Slight increase is
predicted.
Yellow Scale: 41% of groves infested (Norm 62%); none economic (Norm 7%).
This scale will remain below normal and in the low range despite a predicted increase.
Black Scale: 41% of groves infested (Norm 26%); 23% economic (Norm 10%).
Population is above normal and is expected to increase to high level early in June.
Highest districts are East (1.68) and Central (1.10).
Snow Scale: 32% of groves infested; 21% economic. This scale will continue to spread and
intensify.
Whitefly: All forms are more numerous than normal. The larval stage, which is the most
destructive form, is in the high range and further increase is expected. Highest districts
are Central (1.62) and West (1.62).
Mealybug has appeared in 23% of groves, which is near normal. A strong increase is predicted.

Spray Notes: Of the materials that control rust mite, the following can also be used to
control scale insects, mealybug and whitefly in May and June: 5.0 pints of Guthion LC 2'
liquid or ..75 pints of Trithion 4 liquid per 500 gal. as thorough coverage sprays. Ethion
at 3.75 ts will give some scale control but is less effective.


May 17, 19i2 W. A. Simanton


HHUME LIBRARY


MRY 18 1972

CS-1972-13
F S. Univ of Florida 500-5/17/72-WAS-Lake Alfred, Fla.
A AL RESEARCH AND EDUCATION CENTER LAKE ALFRED, FLORIDA
CITRUS INSECT AND DISEASE SUMMARY
MID-MAY 1972
Statewide Index of Abundance


End
- 2.0




-1.5




- 1.0




-0.5


I '


Hig fr


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