Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00021
 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 June 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: VID00021
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
CITRUS EXPERIMENT STATION ,
LAKE ALFRED, FLORIDA CES Mimeo Series 67-33

CITRUS INSECT AND DISEASE SUMMARY
MID-JUNE 1967

Statewide TIdex of Abundance
Eid Trdadi Ed d Mid Trend
S 0 May une > May June
j-2.0


Texas C. mice
i,-I Black Sc
15 C. red mice
\High for 0
-- .> mites --- Glover S
-^---->-- >
4 ,h for /
-1.0 ,- 7 Mealvbug
Rus 0i i scales; ^ .----_ Chaff Sc
Rust mit mealybug -- :"-- > Purple S:




im
0.5





NOTE: Only pests or conditions of general or current interest are reported.
Forecasts are for 1 month in.advance unless otherwise indicated.
Rust Mite: 54% of groves infested (Norm 33%); 36% economic (Norm 18%).
Population decreased but is still higher than average for June. Further decrease is
expected, followed by increase in July. Statewide population will continue to be above
normal with numerous heavy infestations in all districts. Highest districts are South (1.50)
Central (1.32) West (1.23) and North (.91).
Texas Citrus Mite: 83% of groves infested (Norm 64%); 66% economic (Norm 42%).
Population increased and established a new high record for mid-June. Further increase
to a new high level is predicted, with little downward trend until late July. All districts
are high: South (2.27) Central (2.12) East (1.86) North (1.84) and West (1.60).
Citrus Red Mice: 61% of groves infested (Norm 64%); 35% economic (Norm 42%).
The summer increase has started and will continue into July. Some heavy infestations
will occur in all districts but statewide population is not expected to exceed the normal
summer level. Highest districts are East (1.36) West (1.27) and North (1.24).
Glover Scale: 91% of groves infested; 31% economic. Population is above average and in
the high range. A downward trend is expected. Highest districts are East (1.64) South
(1.59) Central (1.44) and West (1.00).
Purple Scale: 79% of groves infested; 6% economic. Population decreased and is below
normal summer level. This scale is of little importance and no change is expected. High-
est district is Central (1.07).
2'ack Scale: 71% of groves infested; 44% economic. A sharp increase has carried popula-
tion into the high range. Further increase will occur through mid-July. The summer peak
is expected to be near normal level. All districts are high: East (1.95) Central (1.33)
South (1.18) North (1.15) and West (1.13).
Chaff Scale: 75% of groves infested; 12% economic. Population increased but is still
below normal abundance and in the moderate range. Little change is expected. Highest
districts are Central (1.07) and East (1.04).
Yellow Scale: 71% of groves infested; 3% economic. Population will remain in the mod-
erate range and infestations will be light. Highest district is Central (.89).
Snow scale is above normal -anndance and increasing.
Malvbug: 70% of groves infested; 16% economic. Population increased almost to the high
rang. It is expected to hold near this level which is lower than the summer peak of the
past 3 years.
Whitefly: 68% of groves infested; 23% economic. Population of the larval form is near
the su:..er peak and at average level. Adults will become more numerous.
S _ay __: Only oil with specific properties is now recommended for June and July ap-
plication to citrus. It is designated FC 435-66 in the 1967 Spray Schedule and is available
from several suppliers.


700 June 19, 19,7 WAS


W. A. Simanton




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