Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00114
 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 December 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: VID00114
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
AREC-LA Mimeo series 71-49

AGRICULTURAL RESEARCH AND EDUCATION CENTER
s 7/.- LAKE ALFRED, FLORIDA
CITRUS INSECT AND DISEASE SUMMARY
END OF NOVEMBER 1971
Statewide Index of Abundance
Mid Nov. End Nov. Trend MidK .. n, ,. LuU
-2.0 HUME LIBRARY

A----- ---
C. Rust Mite DEC 8 171
-1.5

rustmites I.F.A.S. Univ. of Florid

1.0 High for__
scales; .--a i-> WFLY larvae
whitefly; '-9 Black scale
winter high -----------> Glover sale
for CRM & TC ____ ______-- Snow scae
0.5 C. red mite


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.
Citrus Rust Mite: 85% of groves infested (Norm 68%); 63% economic (Norm 47%).
Population continued above normal and in the high range on both leaves and fruit. In-
crease is expected until temperature below 40* F occurs. Highest districts are West (2.42)
South (2.10) North (1.82) and Central (1.76).
Citrus Red Mite: 30% of groves infested (Norm 32%); 3% economic (Norm 9%).
Population is at low level and slightly below normal. Little change is expected. Highest
district is West (.60).
Texas Citrus Mite: 26% of groves infested (Norm 33%); 3% economic (Norm 14%).
This spider mite is also in the low range and below normal. No change is expected. All
districts are low.
Glover Scale: 68% of groves infested (Norm 66%); 3% economic (Norm 12%).
Population is in the low to moderate range and below normal despite a slight increase.
Little change is predicted. Highest districts are South (.83) and West (.81).
Purple Scale: 66% of groves infested (Norm 64%); 2% economic (Norm 6%).
Chaff Scale: 48% of groves infested (Norm 48%); 1% economic (Norm 4%).
Yellow Scale: 26% of groves infested (Norm 57%); none economic (Norm 8%).
Florida Red Scale: 16% of groves infested (Norm 18%); none economic (Norm none).
The 4 armored scales listed above are all near or below the normal low levels for this
time of year. Little change is expected and none of the species will be very important.
Black Scale: 52% of groves infested (Norm 34%); 32% economic (Norm 11%).
This year produced the highest November population in 20 years of record. It is now in
the moderate range and is expected to drop into the low range before year end. Highest
districts are Esat (1.48) Central (1.38) and North (.75).
Snow Scale: 30% of groves infested; 23% moderately or heavily infested. Population is higher
than in any prior November. It has shown little change since March 1971 and is not expected
to change much through February.
Whitefly: 78% of groves infested; 18% economic. Population dropped out of the high range
but is still at the highest level for November in 20 years of record. Decrease is expected.
Highest districts are East (1.62) and West (1.31).
Spray Notes: Where sprays are applied during the harvest season,be sure to observe the re-
quired waiting periods between time of application and harvest. These are given in the 1971
Florida Citrus Spray and Dust Schedule. No waiting days are required for chlorobenzilate,
Delnav, and ethion used as recommended, but other pesticides may involve waiting time.
WATCH THOSE RUST MITES!
THE NEXT ISSUE OF THIS SUMMARY WILL BE RELEASED EARLY IN JANUARY, 1972


525 December 8, 1971 WAS


W. A. Simanton




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