Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00026
 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 August 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: VID00026
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


CES Mixzo Series 68-7
CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
END OF AUGUST 1967

Statewide Index of Abundance
Mid End d Mid End Tr
Trend Trend
-2.0 Aug. Aug. Aug. Aug.
v.

Fruit

-1.5 "- "
Leaves Rust mite High for Black
High for as Black
mites
High for
-1.0 scales

Texas C. mite O
.--o Yellow
-0.5 /A >8- Glover
C. red mite
Scales


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: 61% of groves infested (Norm 48%); 44% economic (Norm 29%).
on Fruit: 71% of groves infested (Norm 57%); 54% economic (Norm 40%).
Population continued to be above normal on both leaves and fruit. Although further
decrease is expected until late September, statewide population on fruit will remain in
the high range and all districts will have some heavy infestations. Increase is ex-
pected in October. Highest districts are West (2.10) South (1.94) and North (1.07).
Texas Citrus Mite: 30% of groves infested (Norm 22%); 9% economic (Norm 9%).
Population is near the normal low level for this date. It will remain low through
September, followed by gradual increase in October. Only scattered infestations will
be important until November. Highest district is East (.86).
Citrus Red Mite: 28% of groves infested (Norm 27%); 11% economic (Norm 13%).
Population has decreased to low level and is normal for September. Very few heavy
infestations are expected. Little change will occur until mid-October. Highest district
is West (.83).
Black Scale: 75% of groves infested, 52% economic. Population is above normal and in
the high range but is rapidly decreasing. Further decrease will occur and few infesta-
tions will be important after September. Highest districts are..West (2.08) East (1.79)
and South (1.79).
Glover Scale: 54% of groves infested; 15% economic. Population is above normal but has
dropped to the low range. Further decrease in September followed by gradual increase in
October is expected. Highest district is South (1,16).
Purple Scale: 41% of groves infested; none economic. Population is below normal and in
very low range. Little change is expected, Highest district is East (.50).
Chaff Scale: 34% of groves infested; none economic. Population has decreased to the
very low level normal for September, Little change is expected. Highest district is
West (.58).
Yellow Scale: 55% of groves infested; 1% economic. Population is near the average of
recent years and in the low range. Slight increase is expected in late September.
Highest district is East (.71).
Whitefly is below normal and in the low range but will become more abundant during
September.
Brown Soft Scale was, at'the lowest.;Auggs~':leve.'inr-i6yeass b:.record,.; .: ..

NOTE: Rust mite is the only pest likely to be troublesome in September, Control it before
20% of leaves or fruit are infested.
THE NEXT SUMMARY WILL BE ISSUED IN EARLY OCTOBER.
650 September 7, 1967 WAS W. A. Simanton




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