Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00085
 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 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: VID00085
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

F$ ?o-3


CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA


CES Mimeo Series 70-33


CITRUS INSECT AND DISEASE SUMMARY
MID-JUNE 1970


NOTE: Only pests or conditions of general or current interest are re-
ported. Forecasts are for 1 month in advance unless otherwise
indicated.


Citrus Rust Mite: 55% of groves infested (Norm 45%); 35%
Population is above normal and presently at moderate
upward trend which is expected to continue through July.
(1.42) Central (1.32) South (1.26) and East (1.21).


economic (Norm 26%).
level. It has again taken an
Highest districts are West


Citrus Red Mite: 69% of groves infested (Norm 63%); 41% economic (Norm 38%).
Population increased sharply and is now above normal and in the high range. Further
increase is expected followed by decrease at mid-July. Highest districts are North (1.50)
Central (1.39) and East (1.33).
Texas Citrus Mite: 46% of groves infested (Norm 69%); 26% economic (Norm 47%).
Population is still much below normal and in the moderate range. However, a rapid
increase is expected through June and some heavy infestations are predicted in all
districts. Highest district is East (1.19).


Glover Scale: 89%
Population is
decrease. Highest


of groves infested (Norm 86%);
near normal. It will continue
districts are South (1.41) and


18% economic (Norm 30%).
in the high range through June, then
East (1.09).


Purple Scale: 70% of groves infested (Norm 80%); 4% economic
Yellow Scale: 63% of groves infested (Norm 68%); 8% economic
Chaff Scale: 45% of groves infested (Norm 70%); 1% economic
These 3 scales are expected to continue near the current
A few heavy infestations will occur in scattered areas.


(Norm 11%).
(Norm 11%).
(Norm 15%).
low to moderate level.


Black Scale: 42% of groves infested (Norm 69%); 25% economic (Norm 49%).
Population is still below normal and low in most districts but will increase rapidly
through July. Highest district is East (1.41).


Snow Scale: 25% of groves infested; 14% with moderate or heavy infestation.
is higher than in any prior month. It will continue near the present level.


Population


Whitefly: 82% of groves infested; 48% economic.
The larval form is more abundant than in any prior month. Adult forms also are
much above normal. Adults and eggs will increase. Highest districts are East (2.26)
North (1.52) West (1.31) and South (1.14).
Mealybug: 67% of groves infested; 15% economic.
Population is near normal and at moderate level. It will increase rapidly and enter
the high range before mid-July, then decrease. Highest districts are East (1.61) and
West (1.06).
Spray Notes: The summer spray is usually timed to control rust mite before the summer in-
crease has built up heavy infestations. This spray is also for general clean up of scales,
whiteflies, spider mites and mealybugs; hence it should be thoroughly applied in ample
volume to wet foliage, fruit and wood. This is especially true where snow scale is to be
controlled.


600 June 17, 1970 WAS


W. A. Simanton




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