Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00087
 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: Mid August 1970
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: VID00087
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



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CES Mimeo Series 71-5


Statewide Index of Abundance


End
June


Mid
July


End
July


I
Trend


4----->
S Rust mite


C. red mite
-


Texas C. mite


uigh for


4. f -


mites


High for
scales;
whitefly,
mealybug


End
fune


Mid
July


End
July


Trend
Trend


-Blac
N, ATWF-L
-WF-
Jr. _---^ Mly"


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: 88% of groves infested (Norm 63%); 67% economic (Norm 44%).
Population is above normal, in the high range, and at the summer peak. Although
decrease is expected, population will continue to be high through August. All districts
are high: South (2.27) Central (2.16) West (2.00) East (1.67) and North (1.56).
Citrus Red Mite: 69% of groves infested (Norm 63%); 42% economic (Norm 36%).
Population is in the high range and slightly above normal. Decrease began at mid-
July and will continue until population reaches a low level in September. Only scattered
infestations will be important. Highest districts are West (1.67) and South (1.47).
Texas Citrus Mite: 64% of groves infested (Norm 69%); 38% economic (Norm 43%).
This mite continued below the summer normal and did not attain a high level of
abundance. It will decrease through August and be unimportant through September.
Glover Scale: 86% of groves infested (Norm 76%); 17% economic (Norm 26%).
Population is near normal and in the high range but will decrease to unimportant
level by September. Highest district is South (1.24).

Purple Scale: 81% of groves infested (Norm 68%); 8% economic (Norm 6%).
Population is above normal but has held to moderate level. Very few infestations
will be important. Highest district is North (1.25).

Chaff scale will continue to be at a low level of abundance in all districts.

Black Scale: 83% of groves infested (Norm 81%); 59% economic (Norm 63%).
Population attained the seasonal peak in July below the normal level. It will
gradually decrease through September and be of little concern this year.


Yellow Scale: 65% of groves infested (Norm 63%); 19% economic (Norm 8%).
Population was the highest for July in 18 years of record but remained
moderate level except in North district (1.50). Decrease is expected.


at low to


Snow scale was more abundant in July than in any prior month. Fifteen percent of groves
harbored moderate or heavy infestations. Increase is expected.
Whitefly: 76% of groves infested (Norm 54%); 39% economic (Norm 22%).
Population is the highest for any month in 18 years of record. This is true for egg,
larva and adult forms, separately and together. Decrease is expected. All districts are
high: East (1.80) West (1.44) Central (1.31) North (1.23) and South (1.00).
Mealybug: 72% of groves infested (Norm 66%); 30% economic (Norm 20%).
Population is above normal and in the high range. The decrease that began at mid-
July will drop the population into the low range in August. Highest districts are
South (1.71) West (1.31) and East (1.20).
Spray Notes: The summer application of FC 435 spray oil should be completed as early in
August as possible, especially on early varieties. Watch for build-up of rust mites in
groves last sprayed in June or early July.


600 August 4, 1970 WAS


CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF JULY 1970


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W. A. Simanton




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