Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00124
 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 June 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: VID00124
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
O







HUME UBRARY
CS-1972-16
450-6/16/72-WA Lake Alfred, Fla.

AGRICULTURAL RESEARCH AND EDUCATION CENTER AKE LUi FLOOR A
CITRUS INSECT AND DISEASE SUMMARY
MID-JUN ,1
** *AL. Univ. of Florida
Statewide Index '-^1ufldani e f Flo" a
End May Mid June Trend End May Mid June Trend
-2.0

S3 Black scale
Rust mite /
1.5 -High for /

S/mites WFLY-L

1.0 Texas C. mite High for 0 1 Mealybug
scales; --- Glover s ale
whitefly *


0.5 --- x -- Snow sca e
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: 69% of groves infested (Norm 49%); 41% economic (Norm 30%).
Population will remain in the high range and above normal. It will show little change
until July when a rapid increase on new fruit is expected. Highest districts are South (1.74)
Central (1.53) and North (1.31).
Texas Citrus Mite: 64% of groves infested (Norm 64%); 43% economic (Norm 43%).
Population is increasing rapidly. It will attain the normal high summer level in late
June then decrease in July. About 20% of groves will harbor heavy infestations. Highest
districts are Central (1.61) and South (1.54).
Citrus Red Mite: 33% of groves infested (Norm 63%); 14% economic (Norm 38%).
This mite is also increasing but will remain below normal summer abundance. About 10% of
groves will develop heavy infestations. Highest districts are West (.93) and South (.82).
Black Scale: 74% of groves infested (Norm 62%); 60% economic (Norm 41%).
Population is the highest for June in 21 years of record. It is building up to high level
earlier than usual and is expected to peak about mid-July. Highest districts are East (2.76)
Central (2.17) South (1.65) and North (1.10).
Glover Scale: 82% of groves infested (Norm 87%); 5% economic (Norm 26%).
Population is the lowest for June since 1964. Little change is expected from the current
moderate level. Highest district is West (1.00).
Purple Scale: 69% of groves infested (Norm 77%); 4% economic (Norm 9%).
Population will remain below normal and in the low to moderate range in all districts.
Chaff Scale: 38% of groves infested (Norm 62%); less than 1% economic (Norm 10%).
Yellow Scale: 33% of groves infested (Norm 63%); less than 1% economic (Norm 8%).
These two scales will remain below normal and in the low range in all districts.
Snow Scale: 31% of groves infested; 22% economic. Population will remain near current level.
Whitefly: 76% of groves infested; 27% economic. Population is above normal and in the high
range. Increase is expected. Highest districts are East (1.83) and West (1.27).
Mealybug: 59% of groves infested; 14% economic. Population is increasing rapidly and is
expected to enter the high range by the end of June. A summer peak near normal level is ex-
pected at mid-July.
Green Scale: 25% of groves infested (Norm 6%); 7% economic (Norm 1%).
This uncommon species has suddenly become more abundant than at any month in 21 years of
record. Spotty infestations occur in the East, Central and South districts.

Spray Notes: The predicted high populations of black scale, whitefly and mealybug will result
in heavy coatings of sooty mold unless these honeydew producing species are controlled.
Sprays containing 0.5 percent or more oil loosen the sooty mold. Do not apply oil unless the
trees have adequate moisture.


June 16, 1972 .


W. A. Simanton




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