Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00036
 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 March 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: VID00036
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
0 CITRUS EXPERIMENT STATION CES M o S
CES Mimeo Series 68-23
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
MID-MARCH 1968

Statewide Index of Abundance
End Mid Ed Mid *
STrend Ed Trend
-2.0 Feb. Mar. Feb. Mar.
Rust Mite

SLvs.
-1.5
c High for Scales
rust mite

1.0 Fr -7 High for
scales;
c le --------> Glover
winter high ---
Texas C. mite for Yellow
) CRM & TCM ------------ Black
0.5 8 C &C


C. red 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: 73% of groves infested (Norm 56%); 52% economic (Norm 34%).
Population is decreasing but is still above normal and in the high range. Further
decrease is expected to drop statewide population out of the high range for the first
time since September 1967. Highest districts are South (1.84) Central (1.81) and
West (1.67).
Texas Citrus Mite: 33% of groves infested (Norm 27%); 12% economic (Norm 10%).
Population will decrease to the low level normal for March and hold near that level
until mid-April. Highest district is East (.73).
Citrus Red Mite: 31% of groves infested (Norm 37%); 11% economic (Norm 14%).
This mice will remain below normal abundance and in the low range. Highest
district is East. (.77).
Six-spotted Mite: 5% of groves infested; 1% economic. Little change is expected.
Glover Scale: 80% of groves infested (Norm 80%); 8% economic (Norm 18%).
Population will remain subnormal and in the moderate range. Highest districts are
East (1.14) and West (1.00).
Purple Scale: 68% of groves infested (Norm 80%); 2% economic (Norm 11%). Population is
the lowest on record for March. Little change is expected. All districts are low.
Chaff Scale: 41% of groves infested (Norm 66%); 1% economic (Norm 11%). This scale
continues to be much below normal, and in the low range. Little change is expected.
All districts are low.
Yellow Scale: 66% of groves infested (Norm 61%); 1% economic (Norm 15%).
cPpulation will remain low and below normal. Highest district is South (.82).
Black Scale: 39% of groves infested (Norm 27%); 19% economic (Norm 12%).
Population is in the low range but above normal for March. No important change is
expected. Highest districts are Central (1.31) and East (.86).
Snow Scale is in 16% of groves and will increase.
Aphids are present in less than 2% of groves. They are expected to peak in late April
this year, 2 weeks later than normal, and be less abundant. than usual. Scattered in-
festations will be important in Temple, tangelo and Murcott groves and in young plantings
of other varieties.

Sjiray Notes~ Indications point to a peak bloom period occurring in late April at least
2 weeks later than average. This will postpone the spring spray period. New is a good
time to inspect groves for scales, especially snow scale on trunk and limbs, for Glover
scale on inside leaves and sprouts, and for live black scale on branches, terminals and
leaves.
Survey records show that 25 to 60% fewer applications of copper, nutritional elements,
and miticides were made in 1967, compared to other years. A two-year omission of these
materials could lead to seriously weakened trees.
600 March i5, 1968 WAS W. A. Simanton




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