Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00030
 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 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: VID00030
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 68-14
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
MID-NOVEMBER 1967

Statewide Index of Abundance
End id Trend End Mid Trend
Oct. ov. Oct. Nov,
2.0 Lvs. -
^- -^-- '-
.V.. Frt.

Rust mite
1.5
High for
rust mite

1.0 High for
scales;
winter high
for -----> Glover
for
CRM & TCM o-----
--> Yellow
-0.5 C. red mite

a- Scales
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 on Leaves: 82% of groves infested (Norm 67%); 69% economic (Norm 50%).
on Fruit: 82% of groves infested (Norm 70%); 62% economic (Norm 52%).
Population on leaves is at the highest November level in 16 years of record. Popula-
tion on fruit is also very high. These high levels will occur into December and about 30%
of groves will have heavy infestations. All districts are high: South (2.44) North (2.05)
Central (1.91) West (1.62) and East (1.36).
Texas Citrus Mite: 19% of groves infested (Norm 30%); 10% economic (Norm 11%).
Population is below normal and at low level but is increasing. Increase is expected
until mid-December and a few scattered groves will develop heavy infestations. Highest
districts are North (.57) and West (.33).
Citrus Red Mite: 26% of groves infested (Norm 35%); 7% economic (Norm 9%).
Population is below average level and in the low range. Little change is expected.
A few groves will harbor moderate to heavy infestations. Highest districts are West (.53)
and North (.50).

Glover Scale: 74% of groves infested; 5% economic. Population is below average and at
moderate level. Little change is expected. Highest districts are East (1.04) South (.96)
and West (.93).
Purple Scale: 47% of groves infested; 1% economic. Population is at the lowest November
level on record. Slight increase is expected. All districts are below .57.
Chaff Scale: 39% of groves infested; 2% economic. Population is below normal and very
low. Little change is expected. Highest district is South (.61).
Yellow Scale: 57% of groves infested; 3% economic. Population is below average and in
the low range. Decrease is expected. Highest district is West (.80).

Whiteflies have decreased and will remain at normal moderate level.

Spray Notes: Termites, ants, and fungi frequently harm young trees while they are banked
for cold protection. Recommendations to prevent damage include:
1) Remove dead and broken branches and coat trunk wounds with water repellent tree
paint.
2) Prior to making -. bank, spray the trunk and surrounding soil with a mixture of
1 qt of 72% chlordane (8E) per 100 gallons of water for insect control. One
pound of metallic copper in neutral form may be added as a fungicide. Apply 1
to 2 quarts of the mixture per tree using low pressure to avoid blasting the
tree. Do not spray fruit.
3) Make the bank from soil free of roots, chips and paper.


650 November 20, 1967 WAS


W. A. Simanton




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