Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00034
 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 February 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: VID00034
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

CITRUS INSECT AND DISEASE SUMMARY
MID-FEBRUARY 1968

Statewide Index of Abundance


Mid
Feb


Rust mite
T


Trend
Trend


Fruit


,," --


_ High for
rust mite

4-i Q1 fnr


Texas C. mite

0
C. red mite
C. red mite


scales;
winter high
for
CRM & .TCM


End
Jan


Mid
Feb


Mimeo Series 68-21


Trend


Scales


o---- ~-- E lack
_---_ Glover
0-----> Yellow.


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: 74% of groves infested (Norm 57%); 60% economic (Norm 36%).
Rust Mite on Fruit: 85% of groves infested (Norm 45%); 64% economic (Norm 27%).
Population decreased on leaves but is at the highest February level in 17 years on
both leaves and fruit. Although decrease is expected, statewide population will con-
tinue in the high range and many groves will have important infestations. Highest
districts are West (2.17) South (2.14) Central (1.85) and East (1.44).
Texas Citrus Mite: 42% of groves infested (Norm 26%); 11% economic (Norm 8%).
Population decreased but is still above the normal low level for February. Little
change is expected. Infestations will be important.in scattered locations. Highest
districts are West (.77) and East (.67).
Citrus Red Mite: 39% of groves infested (Norm 31%); 8% economic (Norm 13%).
Population is expected to decrease slightly from the current low level and will be
near normal for February. A few important infestations will occur. Highest district'
is East (.90).

Six-spotted Mite: 8% of groves infested; none economic. Increase is expected.

Glover Scale: 70% of groves infested (Norm 80%); 8% economic (Norm 18%).
Population is below average and moderate. Decrease is expected. Highest.districts
are East (1.13) West (.87) and South (.81).
Purple Scale: 66% of groves infested (Norm 74%); 2% economic (Norm 16%).
Population is below normal and in the low range. Slight increase is expected.
Highest district is East (.87).
Black Scale: 48% of groves infested (Norm 43%); 23% economic (Norm 13%).
Population is above normal for February but not of great concern at this time.
Little change is expected. Highest districts are Central (1.20) and East (.96).
Yellow Scale: 60% of groves infested (Norm 63%); 2% economic (Norm 17%).
Population is below that of recent years. It will continue to be in the low range
and of little importance. Highest district is East (.87).

Snow scale, now in 15% of groves, will be of continuing concern.
Chaff Scale: 41% of groves infested (Norm 70%); 1% economic (Norm 12%).
This scale will remain below normal and unimportant.
Whitefly: 29% of groves infested; 8% economic. Population is normal and moderate.
Aphids are starting to appear in scattered locations.
Ncte: Cool weather in February has slowed scale and mite activity temporarily. Rust
mite will continue to be a threat in many groves and may require treatment before the
pcst bloom period.
Beginning in 1968 the summary will show a value for the Norm (= normal or average
situation) for the more important scales based on at least 4 years of recent records.


600 February 20, 1968 WAS


End
Jan


-


W. A. Simanton




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