Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00072
 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 1969
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: VID00072
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

P


CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA


CES Mimeo Series 70-14


CITRUS INSECT AND DISEASE SUMMARY
MID-NOVEMBER 1969


Statewide Index of Abundance


End bct. Mid Nov. Trend


-2.0


-1.5




-1.0




-0.5


Fruit
------>
a-1 -_A- -.-.-.- ->
v Leaves
Rust Mite


End Oct. Mid Nov. Trend


High for
mites

High for


C. red mite

0- _____ -
T _C -
r2 --------

Texas C. mite


scales, white
winter high
for CRM & TCY.


Ely;


Whitefly

--------> Black sc


.-- L----


Glover s
Yellow st


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

Rust Mite: 77% of groves infested (Norm 69%); 59% economic (Norm 51%).
Population remained above normal and at high level. Increase occurred on fruit and
further advance is indicated until December, Highest districts are West (2.50) North
(2.04) Central (1-78) and South (1 70).

Citrus Red Mite. 40% of groves infested (Norm 32%); 9% economic (Norm 8%).
Population increased and is slightly above normal but is still in the low range.
Further increase is expected Highest district is North (.55).

Texas Citrus Mite: 28% of groves infested (Norm 27%); 8% economic (Norm 10%).
Population is normal and low, Slight increase is expected. All districts are in
the low range and very few groves will develop troublesome infestations.

Black Scale: 58% of groves infested (Norm 32%); 28% economic (Norm 10%).
Population is the highest for November in 18 years of record. Most infestations are
light to moderate and are expected to persist until freezing temperatures slow activity.
Highest districts are West (1,33) Central (1.29) and East (1.26).

Glover Scale: 62% of groves infested (Norm 65%); 6% economic (Norm 12%).
This scale is below normal and at a low level of abundance. Little change is ex-
pected. Highest district is North (.79)

Purple Scale: 57% of groves infested (Norm 61%); 3% economic (Norm 5%).
Population will remain normal and low in all districts despite slight increase.

Chaff Scale: 42% of groves infested (Norm 41%); 2% economic (Norm 3%).
Population will remain below normal and low in all districts.


Yellow Scale: 52% of groves infested (Norm 55%); 7% economic (Norm 8%).
Increase has brought population to the normal low level for November.
increase is expected and a few heavy infestations may develop in scattered
Highest district is North (.96).


Additional
locations.


Snow Scale: 24% of groves infested; 7% with moderate to heavy infestations. Population
is higher than in any prior November,

Whitefly: 83% of groves infested (Norm 64%); 26% with moderate to heavy infestations
(Norm 11%). Population has started to decrease but is still at the highest November level
in 18 years. Highest districts are East (1.54) and North (1.25).

Spray Notes: Combination miticides may be used in the fall and winter to control citrus
rust mite, citrus red mite and Texas citrus mite. Use Delnav 4 liquid, ethion 4 liquid
or Trithion 4 liquid at 2.5 pints per 500 gallons of spray; use Kelthane MF at 5.0 pints.
Do not use Kelthane in groves infested with citrus snow scale unless a scalicide is added.


600 WAS November 20, 1969


W. A. Simanton




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