Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00029
 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 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: VID00029
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


CES Mimeo Series 68-12


CITRUS INSECT AND DISEASE SUMMARY
END OF OCTOBER 1967

Statewide Index-of Abundance
Mid End Mid End
Trend Trend
Oct. Oct. Oct. Oct.
-2.0
Leaves


Fruit
-1.5 Rust mite
High for
mites Scales

-1.0 High for
scales
--- Glover
------- > Yellow

-0.5
C. red mite -


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: 80% of groves infested (Norm 67%); 64% economic (Norm 47%).
on Fruit: 76% of groves infested (Norm 73%); 60% economic (Norm 52%).
Population decreased slightly but is still near the record high October level.
Although further decrease is expected, rust mite will continue to be above normal and
in the high range in most districts. All districts are high: South (2.42) West (2.00)
Central (1.88) North (1.74) and East (1.31).


Texas Citrus Mite: 16% of groves infested (Norm 24%);
Population is below normal and in the low range.
are starting to appear in scattered locations and more
is North (.39).


7% economic (Norm 7%).
However, a few heavy infestations
are expected. Highest district


Citrus Red Mite: 23% of groves infested (Norm 31%); 6% economic (Norm 8%).
Population is still below normal and in the low range. Increase is expected which
will lead to important infestations, especially in young groves in areas of scanty
rainfall. Highest districts are West (.57) and North (.43).

Glover Scale: 69% of groves infested; 5% economic. Population is still slightly below
normal but is increasing and will move up to the moderate range. Highest districts are
South (.93) West (.93) and East (.91).

Purple Scale: 42% of groves infested; less than 1% economic. Population is at the
lowest October level in 10 years and will remain uniformly low in all districts.

Yellow Scale: 60% of groves infested; 4% economic. Population is less than the average
for recent years and at low level. A slight increase is expected which will lead to a
few important infestations in scattered groves. Highest districts are West (.80) and
East (.74).

Chaff Scale: 38% of groves infested; 2% economic. Population is below normal and at
low level. Slight increase is expected. Highest district is South (.59).
Snow Scale is present in 11% of groves. Most infestations are lighter at this time of year.
Whitefly increased to the moderate level normal for October. Slight additional increase
is expected.

Spray Notes: We are now in the season when crops may be harvested on short notice. It
is important that theUSDA approved waiting periods between pesticide application and
harvest be observed. Details are given in the 1967 Citrus Spray and Dust Schedule.


650 November 3, 1967 WAS


W. A. Simanton




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