Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00092
 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 1970
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: VID00092
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


s 7Th73


CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA


CES Mimeo Series 71-13


CITRUS INSECT AND DISEASE SUMMARY
END OF OCTOBER 1970


Statewide Index of Abundance


Mid Oct. End Oct. Trend
-2.0 Lvs. L -

Frt.--


Rust mite
High for
mites


Texas C. mite




C. red mite


Hieh for


scales;
whitefly


Mid Oct. End Oct. Trend









WFL
WFA


. V LWIj


-- Glover s<
*------ > Purple s4

<_____ _> Snow sc


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

Citrus Rust Mite: 86% of groves infested (Norm 70%); 69% economic (Norm 49%).
Population on leaves and fruit is the highest for October in 19 years of record.
Decrease from the present high level is expected at mid-November. All districts are
high: South (2.17) Central (2.08) West (2.00) North (1.90) and East (1.62).
Citrus Red Mite: 29% of groves infested (Norm 28%); 8% economic (Norm 7%).
Population is near normal and in the low range. Little change is expected.
Highest districts are West (.67) and Central (.62).
Texas Citrus Mite: 25% of groves infested (Norm 23%); 12% economic (Norm 7%).
This mite also is near normal abundance and at low level. Slight increase is
expected. Highest district is Central (.76).


Glover Scale: 67%
Population is
increase. Highest


of groves infested (Norm 62%); 6% economic (Norm 9%).
near average and will remain in the moderate range despite a slight
district is North (.86).


Purple Scale: 62% of groves infested (Norm 56%); 2% economic (Norm 3%).
This scale will continue to occur as light to moderate infestations. Highest
district is North (.79).
Black Scale: 47% of groves infested (Norm 32%); 16% economic (Norm 10%).
Population will be above normal but mostly in the low range. Slight increase is
expected until cold weather occurs. Only the highest district, Central (1.17), is
likely to have noteworthy infestations.
Yellow Scale: 41% of groves infested (Norm 55%); none economic (Norm 9%).
Infestations will remain light in all districts.
Chaff Scale: 37% of groves infested (Norm 41%); none economic (Norm 4%).
Only light infestations are expected in any district.
Snow Scale: 25% of groves infested; 15% with moderate or heavy infestations. Population
is the highest on record for October but is less than in September. Increase is expected
in November if mild weather continues.
Whitefly: 89% of groves infested (Norm 66%); 18% economic (Norm 12%).
Population is still above normal and in the high range. The recent downward trend
is expected to lower the population to moderate level in November. Highest districts
are East (1.36) and North (1.21)... ..
Melanose blemish in October was b loHih geLQ ii, stan much below average on fruit.


Fruit Splitting was important in
in October 1969 and 4.6% in Octob


.8% of groves in October 1970.
r 19681|',V 3 1970



I.F.A.S. Univ. of Florida
600 November3, 1970 WASW. A. Simanto


This compares to 6.3%


-1.5


-1.0


-0.5


..7~T


600 November 3, 1970 WAS


W. A. Simanton




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