Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00083
 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 May 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: VID00083
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


CITRUS EXPERIMENT STATION CES Mimeo Series 70-32
LAKE ALFRED, FCES Mimeo Series 70-32
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF MAY 1970

Statewide Index of Abundance
I I I I I I
Mid End Trend Mid End Trend
2.0 May May May May



Rust mite leaves
1.5
-15 Whitefly
___High for
N mites
mites Glover sc
_1.0 --0N High for -----
scales;
O~ C. red mite whiteflyYellow s
Yellow s
0 0-

-0.5 al 1-
Texas C. mite Mealybug



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: 54% of groves infested (Norm 44%); 33% economic (Norm 27%).
Population on leaves decreased to moderate level but is still above normal. In-
crease is expected at mid-June. Fruit infestation is also above normal and is increasing
rapidly. Highest districts are West (1.50) Central (1.24) South (1.21) and East (1.18).
Citrus Red Mite: 60% of groves infested (Norm 57%); 27% economic (Norm 32%).
Population increased. It is now at moderate level and near normal for May.
Additional increase is expected in June followed by decrease in July. Highest districts
are West (1.07) and East (1.05).
Texas Citrus Mite: 37% of groves infested (Norm 59%); 17% economic (Norm 38%).
Population remained much below normal and in the low range despite an increase. It
is not expected to reach a high level this summer although a few heavy infestations will
occur. Highest district is South (.78).
Six-spotted Mite: 14% of groves infested (Norm 14%); 5% economic (Norm 2%).
Population is near the annual peak and about normal in magnitude. It will decrease
in July.
Glover Scale: 90% of groves infested (Norm 84%); 17% economic (Norm 28%).
Population has entered the high range and is close to the average level for May.
Further increase is expected. Highest districts are South (1.36) and East (1.10).
Purple Scale: 80% of groves infested (Norm 81%); 6% economic (Norm 12%).
This scale will remain at moderate level and near normal abundance. Highest district
is North (1.00).
Yellow Scale: 61% of groves infested (Norm 66%); 8% economic (Norm 11%).
Population is slightly below normal and at moderate level. Little change is
predicted. Highest district is North (.93).
Chaff Scale: 45% of groves infested (Norm 69%); 2% economic (Norm 15%).
Black Scale: 18% of groves infested (Norm 48%); 5% economic (Norm 26%).
These two scales will remain subnormal and low in all districts.
Snow Scale: 25% of groves infested; 12% with moderate to heavy infestations. Population
increased and is higher than in any prior month.
Whitefly: 75% of groves infested (Norm 61%); 47% economic (Norm 19%).
Population is the highest for any month in 19 years of record. Further increase is
expected. District indexes are East (2.13) West (1.62) Central (1.39) North (1.29) and
South (.61).
Mealybug: 40% of groves infest d HUME%LBRAR mic (Norm 12%).
Population will increase r pidly through June.

ALERT WATCH J W EVISO SEE EI CLOSED NOTICE.


I.F.A.S. Univ. of Florida


W. A. Simanton


600 June 5, 1970 WAS




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