Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00120
 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 April 1972
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: VID00120
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



1Vy)



t15


Endar. Mi Apr. Tend
End Mar. Mid Apr. Trend


- 2.0


- 1.5


Rust mite leaves
-- -- -)


Statewide Index of Abundance


High for


a- mites


-1.0



Texas C. mite
- 0.5 E3


0-----
C. red mite


High for


scales;
whitefly


End Mar. Mid Apr. Trend



HUME LIBRARY


AFR 19 :


I.F.A.S.- Univ. of Flcrda -


Glover s
__- ,---- --- Black sc
_-- Purple s


:ale
ale
:ale


x-------- -- Snow scale
x--. ------x--- --> Snow scb


NOTE: Only pests or conditions of general or current interest are reported.
Forecasts are for 1 month in advance unless otherwise indicated.
trus Rust-Mite: 70% of groves infested (Norm 64%); 47% economic (Norm 43%).
Population increased slightly and is again above normal and in the high range. Further in-
ease is expected. Highest districts are West (1.81) South (1.78) and Central (1.67).
trus Red Mite: 25% of groves infested (Norm 45%); 6% economic (Norm 16%).
Population increased abruptly indicating the start of the spring buildup from the record
w March level. Further increase is predicted. Highest district is West (.69).
xas Citrus Mite: 35% of groves infested (Norm 38%); 11% economic (Norm 17%).
This mite also increased sharply from low level. Further expected increase will bring
pulation above normal and into the moderate range. Some heavy infestations will develop in
1 districts. Highest districts are South (.70) and East (.65).
x-spotted mite population is below normal and very low. Although gradual increase is expected,
ry few groves will have important infestations.
over Scale: 82% of groves infested (Norm 80%); 2% economic (Norm 17%).
Population increased but is below normal and at moderate level. Further increase is ex-
cted. Highest district is South (1.00).
rple Scale: 75% of groves infested (Norm 78%); 6% economic (Norm 10%).
This scale is at moderate level and near normal abundance. Little change is expected.
ghest district is West (1.00).


aff Scale: 46% of groves infested (Norm 57%); 2% economic (Norm 8%).
Hlow Scale: 39% of groves infested (Norm 63%); none economic (Norm 8%).
These two scales will remain below normal and near current low levels in


all districts.


ack Scale: 44% of groves infested (Norm 22%); 21% economic (Norm 8%).
Statewide population is in the low range but is the highest for April in 21 years of record.
varies greatly. Population is high and increasing in East (1.52) and Central (1.07) districts,
and low and still decreasing in North (.39) and South (.18) districts. A general increase ex-
pected in May will cause important infestations in all districts.
Snow Scale: 31% of groves infested; 20% economic. A slight temporary decrease is expected.
Whitefly: Both larval and adult forms are present in above normal numbers. Abnormally high
populations of larvae are predicted for May and June.
hids: Population increased rapidly early in April from below normal to above normal numbers.
further increase is expected in April followed by rapid decrease in May.
eealybugs have started to increase from the low March level.
Spray Notes: The postbloom spray this year will be very important in the control of rust mite,
elanose, scab (2nd application) snow scale, black scale and whitefly. Nutritionals may be
dded in this spray. See the 1972 Spray and Dust Schedule for recommended mixtures and the
orrect timing.


kpril 17, 1972


'


L-


* ^


W. A. Simanton


CS-1972-10
500-4/17/72-WAS-Lake Alfred, Fla.


AGRICULTURAL RESEARCH AND EDUCATION CENTER LAKE ALFRED, FLORIDA
CITRUS INSECT AND DISEASE SUMMARY
MID-APRIL 1972




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