Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00028
 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 October 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: VID00028
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 68-11
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
MID-OCTOBER 1967

Statewide Index of Abundance
End Mid Trend End Mid Trend
.0 Sept. Oct. Sept. Oct.
Rust mite fruit
-
-
/,
-1.5 Rust mite leaves

A High for
mites Scales

-1.0 High for
scales

.Glover
~-~ -- Yellow
-0.5
C. red mite ------>Purple

0- -s
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: 81% of groves infested (Norm 65%); 60% economic (Norm 37%).
on Fruit: 80% of groves infested (Norm 72%); 63% economic (Norm 49%).
Population continued to increase and is now at the highest October level in 16 years
of record. Further increase is expected and population will continue to be high with
many heavy infestations in all areas. All districts are high: West (2,75) South (2.32)
East (1.76) Central (1.54) and North (1.44).
Texas Citrus Mite: 13% of groves infested (Norm 20%); 3% economic (Norm 5%).
Population is below normal and very low. Slight increase is underway but is not
expected to develop important infestations before mid-November. All districts are low,
Citrus Red Mite: 16% of groves infested (Norm 26%); 4%'economic (Norm 5%).
This mite also is at very low level. Population will remain low, with little
increase expected until late November. All districts are low.

Black Scale: 17% of groves infested; 5% economic. Population has decreased to the
,lowest October level in 16 years of record and will remain very low in all districts
until-next year.
Glover Scale: 57% of groves infested; 6% economic. Population is below normal and in
the low range. Slight increase is expected. Highest district is South (.92).
Purple Scale: 42% of groves infested; none economic. Population is below normal.
Infestations will remain light and of little importance in any district.
Chaff Scale: 32% of groves infested; 1% economic. Population will gradually increase
but will continue to be at low level and below normal.
Yellow Scale: 60% of groves infested; 2% economic. Population increased to the normal
October level. Few infestations will be important despite the slight increase expected,
Highest district is East (.73).

Whitefly is below average; slight increase is expected.

Spray Notes: Heavy infestations of rust mites will be numerous in all parts of the
citrus belt for at least two months. Rust mite control should be started before 15% of
leaves or fruit are infested. Chlorobenzilate 4E at 1,25 pints per 500 gals can be
used for rust mite alone; sulfur may be preferred for dense trees that are hard to
penetrate; Guthion LC2 at 5 pints per 500 gals is a good choice if snow scale, other
scale or whitefly also require control. The latter 2 materials may promote spider
mite buildup. Kelthane, ethion, trithion and Delnav are recommended for rust mite
and spider mite control.


650 October 18, 1967 WAS


S.W. A. Simanton




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