Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00119
 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 April 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: VID00119
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
CS-1972-9
500-4/4/72-WAS-Lake Alfred, Fla.


- AGRICULTURAL RESEARCH AND EDUCATION CENTER LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF MARCH 1972

Statewide Tndex of Abudanc H ME LBRARY
Mid Mar. End Mar. Trend Mid Mar. End M r. Trend
2.0 APR 7



I.F.A.S.- Unih of Florida
1.5
High for
-- > mites

1.0 Rust mite leaves High for
scales; Glover sale
whitefly *- -- Purple scale
--.--------- Black sc le
x----x---->Snow scae
-0.5 Texas C. mite ->



C. red 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: 68% of groves infested (Norm 647.); 40% economic (Norm 43%).
Population has dropped below average for the first time in 24 months and is now at mod-
erate level on both leaves and fruit. Little change is expected. Highest districts are South
(1.65) West (1.62) and Central (1.59).
Citrus Red Mite: 17% of groves infested (Norm 42%); 2% economic (Norm 16%).
Population is at the lowest March level in 21 years of record. It will remain in the
very low range through April. Highest district is West (.62).
Texas Citrus Mite: 26% of groves infested (Norm 34%); 7% economic (Norm 14%).
This mite is below normal abundance and at low level. Increase is expected in most
districts. Highest district is Central (.42).
Six-spotted Mite: 5% of groves infested (Norm 7%); none economic.
Population will generally remain low and below normal although increase is expected in
scattered groves.
Glover Scale: 80% of groves infested (Norm 79%); 2% economic (Norm 15%).
Population is below normal and in the moderate range but will gradually increase. Highest
district is West (.94).
Purple Scale: 80% of groves infested (Norm 76%); 4% economic (Norm 9%).
Population is near normal and moderate. Little change is predicted. Highest district is
West (1.00).
Chaff Scale: 48% of groves infested (Norm 59%); none economic (Norm 8%).
Yellow Scale: 38% of groves infested (Norm 63%); none economic (Norm 9%).
These two scales will remain below normal and at low level in all districts.
Black Scale: 41% of groves infested (Norm 24%); 20% economic (Norm 9%).
Population is above normal, but in the low range. Further decrease is expected in April
followed by increase in May. Highest districts are East (1.27) and Central (.87).
Snow Scale: 31% of groves infested; 21% economic.
Population is the highest on record for March. It will remain near the current level.
Whitefly: 63% of groves infested (Norm 64%); 13% economic (Norm 16%). Population is near normal
and low. Increase to moderate level is predicted. Highest district is East (1.78).
Aphids: 19% of groves infested (Norm 21%); none economic (Norm 1%).
Population is expected to be smaller than average and peak about mid-April.
NOTE on tree growth for the citrus belt as a whole:
New foliage growth is near the normal magnitude but has occurred 2 weeks later than av-
erage. Peak of bloom will be about 3 weeks later than average and is not expected to attain
normal magnitude.


April 4, 1972


W. A. Simanton




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