Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00051
 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: Mid November 1968
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: VID00051
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 FLORA CES Mimeo Series 69-15

CITRUS iNSECT AND DISEASE SlI':I.Ai '
MID-NOVEMI~ER 1.68

Statewide Index of Abundiance
End Mid End Mid T
Trend Trend
Oct. Nov. Oct. Nov.
-2.0

Fruit
N7--

-1.5 Rust mite
Lvs.
--- .----. High for
rust mite

-1.0 _High for
scales;
winter high
for CRM & TCM
_.__.>Whitefly
-0.5 --- -- Glover c.
Texas C. mite --- -- ----- -Black Sc.


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.

Rust Mite on Leaves: 68% of groves infested (Norm 69%); 43% economic (Norm 53%).
Rust Mite on Fruit: 79% of groves infested (Norm 72%); 58% economic (Norm 54%).
Populations on both leaves and fruit are in the high range. Fruit infestation is
above normal for November, whereas leaf infestation is slightly below. Slight increase
is expected. Highest districts are West (2.11) South (1.93) and North (1.36).
Texas Citrus Mite: 19% of groves infested (Norm 27%); 4% economic (Norm 11%).
Population is below normal and in the low range. Slight increase is under way but
very few heavy infestations are expected to develop. Highest district is Central (.39).
Citrus Red Mite: 22% of groves infested (Norm 34%); 4% economic (Norm 9%).
This mite is also below normal and in the low range. It is at the lowest November
level in 17 years of record. Slight decrease is expected. Highest district is East (.43).
Glover Scale: 50% of groves infested (Norm 69%); 3% economic (Norm 14%).
Population is at the lowest November level since 1961. It will remain below normal
and in the low range. Decrease is expected. Highest districts are West (.79) and
East (.74).
Purple Scale: 37% of groves infested (Norm 65%); less than 1% economic (Norm 5%).
Population increased from the 17 year record low of September 1968 but is still the
lowest on record for November. Infestations will be low and unimportant despite further
expected increase. Highest district is East (.43).
Yellow Scale: 44% of groves infested (Norm 58%); less than 1% economic (Norm 10%).
Population continued below normal and in the low range. Decrease is expected.
Highest district is East (.61).
Black Scale: 34% of groves infested (Norm 32%); 10% economic (Norm 10%).
Population will remain at the current low level normal for November. Highest dis-
tricts are Central (.94) and East (.78).
Snow Scale: 14% of groves infested; 2% with moderate or heavy infestations. Slight
increase is expected in infested groves.
Whiteflies are expected to remain below normal abundance and in the moderate range.

NOTES: The early cold spell of November 13 and 14 slowed development of scales and mites.
Rust mite is the only one of these likely to be widely troublesome this winter.
Termites, ants, and fungi frequently arm young trees while they are banked for cold
protection. Recommendations to prevent ma include: Remove dead and broken branches,
and coat trunk wounds with water repell t int. Make the bank from soil free of
roots, chips and paper. Prior to maki the ay the trunk and surrounding soil
with a mixture of 1 qt of 72% chlorda (8E) per ons of water for insect control.
One pound of metallic copper in neut al fornyay be a fungicide. Apply 1 to
2 quarts of the mixture per tree us ng low p ~'s re to ting the tree. Do not
spray fruit. /


625 November 19, 1968 WAS


W. A. Simanton




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