Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00077
 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 February 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: VID00077
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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S CITRUS EXPERIMENT STATION 70
CES Mimeo Series 70-23
-,.13 LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF FEBRUARY 1970

Statewide Index of Abundance
Mid End Mid End
Trend Trend
Feb. Feb. Trend Feb. Feb. Trend
-2.0

Rust mite

-1.5 Leaves

---- ...---... High for
Fruit rust mite
Fruit

-1.0 High for __itfl1
C. red mite scales,whitef y; ---)Glover sc
C winter high :--
.-for CRM, TCM o OPurple s
Yellow s5

-0.5


-1
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.
Rust Mite: 70% of groves infested (Norm 62%); 43% economic (Norm-41%).
Population dropped out of the high range in 3 districts, but now is expected to
increase. It will continue above the normal level for this time of year. Highest dis-
tricts are West (1.67) and East (1.48).
Citrus Red Mite: 48% of groves infested (Norm 37%); 16% economic (Norm 14%).
Population increased and is slightly above normal. A further increase to moderate
level is expected. A few groves in all districts may develop heavy infestations. Highest
district is West (1.00).
Texas Citrus Mite: 22% of groves infested (Norm 31%); 4% economic (Norm 11%).
This mite decreased further to very low level and is much below normal. Little change
is expected. Highest district is West (.73).
Six-spotted Mite: 2% of groves infested; none economic. Gradual increase is expected.
Glover Scale: 78% of groves infested (Norm 78%); 9% economic (Norm 17%).
Population is below normal and in the moderate range; increase is expected. Highest
district is East (1.09).
Purple Scale: 69% of groves infested (Norm 77%); 5% economic (Norm 9%).
This scale is below normal and at low level. Little change is expected. Highest
district is North (.90).
Chaff Scale: 46% of groves infested (Norm 61%); 1% economic (Norm 9%).
Population is much below normal and in the low range. Slight increase is expected.
Highest district is North (.58).
Black Scale: 14% of groves infested (Norm 33%); 3% economic (Norm 14%).
Population is at the lowest February level since 1963 and this is attributed to
subfreezing temperatures in early January. Little change-is expected.
Yellow Scale: 58% of groves infested (Norm 63%); 9% economic (Norm 13%).
Population is expected to remain near the normal moderate level for March. Scattered
groves will harbor important infestations. Highest district is North (.97).
Citrus Snow Scale: 25% of groves infested; 8% with moderate infestations. Population is
low on a statewide basis. It is higher than in February of previous years. Increase is
expected.
Aphids are still scarce but will increase rapidly in March and early April.
Whiteflies: 59% of groves infested (Norm 55%); 32% economic (Norm 22%).
Population is much above normal and is in the moderate range. Little change is
expected.
Spray Notes: As a rule, spraying should be avoided while trees have blossoms open. If
rust mite or aphids require treatment, this should be done before or after the full bloom
period.


600 March 4, 1970 WAS


W. A. Simanton




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