Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00073
 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 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: VID00073
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
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3 c, CITRUS EXPERIMENT STATION ,
LAKE ALFRED, FLORIDA CES Mimeo Series 70-15

CITRUS INSECT AND DISEASE SUMMARY
END OF NOVEMBER 1969

Statewide Index of Abundance
Mid 'Nov. End' Nov. Trend Mid 'Nov. End' Nov. Trend

2.0
Rust mite fruit



1.5 Rust mite leaves
Whitefly
High for Whi
mites
'7 Black scale
1.0 High for lack
scalesywhitefly; -
winter high fcr
CRM & TCM
C. red mite *- >
.5 -------- Glover scale
0.5 0- -0-
D > Yellow scale
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: 81% of groves infested (Norm 68%); 52% economic (Norm 47%).
Population has taken the strongest downward trend in 3 months and will continue to
decrease. However, rust mite is still above normal abundance and in the high range.
Highest districts are North (1.83) South (1.81) West (1.67) and Central (1.60).
Citrus Red Mite: 41% of groves infested (Norm 32%); 8% economic (Norm 9%).
Population is slightly above normal but still in the low range. Little change is
expected. Highest district is West (.93). A few heavy populations will develop.
Texas Citrus Mite: 27% of groves infested (Norm 33%); 9% economic (Norm 14%).
This mite is less abundant than normal for November. Population is expected to
remain near the current low level. Highest district is Central (.55).
Glover Scale: 66% of groves infested (Norm 66%); 6% economic (Norm 12%).
Purple Scale: 62% of groves infested (Norm 64%); 5% economic (Norm 6%).
These scales will continue in near normal numbers with light to moderate infestations
in all districts.
Chaff Scale: 45% of groves infested (Norm 46%); 2% economic (Norm 4%).
Population will continue near normal and low in all districts.
Black Scale: 54% of groves infested (Norm 34%); 21% economic (Norm 11%).
Population has again taken a downward turn but is still at a record high level for
November. However, population is expected to drop into the low range and this scale will
be of little importance until spring. Highest districts are East (1.35) Central (1.07)
and West (1.07).
Yellow Scale: 61% of groves infested (Norm 57%); 6% economic (Norm 8%).
Population is expected to continue at the current normal and moderate level. Highest
district is North (.96).
Snow Scale: 23% of groves infested; 7% with moderate to heavy infestations. Infestations
have recently intensified in some groves and diminished in others. The statewide popu-
lation is still low but is higher than in any prior month.
Whitefly: 75% of groves infested (Norm 62%); 14% economic (Norm 10%).
Population has decreased sharply and will continue downward. It is still above normal
and is the highest on record for November.

NOTES: Snow scale crawlers are orange colored and often are abundant on infested limbs
even in the cooler months. They can be transported on pickers' clothing and equipment.
It is desirable to have an overnite interval when pickers are moved from infested to
non-infested groves.


THE NEXT ISSUE OF THIS SUMMARY WILL BE PREPARED EARLY IN JANUARY 1970.


600 WAS December 3, 1969


W. A. Simanton




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