Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00032
 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 December 1967
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: VID00032
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
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF DECEMBER 1967


CES Mimeo Series 68-17

(No Summary was issued
at mid-December)


Statewide Index of Abundance


End Mid End Trehd
Nov. Dec. Dec. Lvs.
-2.0 -. .
-2.0 --------------
Rust miteFrt.

Rust mite


-1.5




-1.0
Texas C. mite-.



0 C. red mite
0 C. red mite


I High for


rust mite

High for


scales;
winter high
for
CRM & TCM


End
Nov.


Mid
Dec.


End
Dec.


Trend


Scales


Glover


o o--- Yellow


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

Rust Mite on Leaves: 85% of groves infested (Norm 58%); 68% economic (Norm 39%).
Rust Mite on Fruit: 79% of groves infested (Norm 52%); 65% economic (Norm 33%).
An unusual December increase occurred which will continue into January. Population
on both leaves and fruit was the highest for December in 16 years of record. It was also
near the all time high record of July 1957 and may exceed it next month. All districts
are high: West (2.58) South (2.32) North (2.09) Central (1.80) and East (1.47).

Texas Citrus Mite: 50% of groves infested (Norm 38%); 17% economic (Norm 14%).
Population increased above the normal December level but is still in the moderate
range. Further increase is expected and most districts will develop some heavy in-
festations. Highest districts are West (1.00) South (.92) and North (.71).

Citrus Red Mite: 38% of groves infested (Norm 36%); 18% economic (Norm 13%).
Population will continue to increase but will remain near normal and in the low to
moderate range. Heavy infestations will occur in scattered groves. Highest districts
are West (.85) and East (.77).

Glover Scale: 72% of groves infested; 9% economic. Population is below average and in
the moderate range. Slight increase is expected. Highest districts are East (1.22)
West (.94) and South (.93).

Purple Scale: 65% of groves infested; 3% economic. Population is below normal and in
the low range. Increase is expected but few infestations will be important. Highest
district is East (.91).

Yellow Scale: 68% of groves infested; 4% economic. Population is near normal and
moderate. Slight increase is expected. Highest district is East (1.04).


Black Scale: 50% of groves infested; 18% economic.
to above normal level. However, population is still
important. Highest districts are Central (1.07).and


Mild weather has favored increase
low and very few infestations are
East (.87).


Chaff Scale: 42% of groves infested; 2% economic.. This scale will continue below normal
and in the low range in all districts.

Snow Scale: 14% of groves infested; 4% moderate to heavy. Further increase and spread
is expected.

Soray Notes: The December mite infestation is above normal and there is little chance
for immediate decrease. Mites can still damage fruit and foliage this winter if allowed
to become numerous. Sprays applied in winter can include nutritional materials.


650 January 5, 1968 WAS


I 0


W. A. Simanton




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