Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00002
 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 July 1966
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: VID00002
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
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CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA


CITRUS INSECT AND DISEASE SUMMARY
MID-JULY 1966


Statewide Index of Abundance


End
June


Mid
July


Trend


-1.5 Texas C. mite-.
n-- ----


C. red mite --
0-O- .- -- --' -
Rs---t- it
-1.0 ..
"Rust mite


High for


mites

High for
scales,
mealybug


End --
June


Mid Trend- '
July Black
Scale


Mealybug -."'" -->




>C Glover s<

S--Yellow
-0--- ----> Yellow s<


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

Rust Mite: 57% of groves infested (Norm 59%); 347. economic (Norm 35%).
Population is about average for July and appears to be nearing the summer peak of
abundance. No definite downward trend is expected until mid-August. Highest districts
are West (1.58) and South (1.50).


Texas Citrus Mite:
Population is
the current level.
South (1.43).


65% of groves infested (Norm 72%); 46% economic (Norm 46%).
slightly below average. It is expected to peak in late July near
Highest districts are West (1.62) East (1.60) Central (1.60) and


Citrus Red Mite: 60% of groves infested (Norm 76%); 357. economic (Norm
This mite also is below normal summer abundance. It will increase
then decrease. Highest districts are North (1.26) and East (1.25).


44%).
through July,


Black Scale: 92% of groves infested (Norm 687); 81% economic (Norm 46%).
Population continued to increase beyond previous highs and is now at the highest
level in 15 years of survey. Although decrease is expected after July, adults will be
plentiful through August. A new generation of scale (small tan crawlers with black
bars) will be numerous on leaves, twigs and fruit. All districts are high: South (2.80)
East (2.70) Central (2.46) West (1.85) and North (1.74).

Glover Scale: 88% of groves infested; 32% economic. Population has diminished but is
still above average and in the high range. Decrease is expected. Highest districts
are South (1.67) East (1.50) and Central (1.38).

Purple Scale: 70% of groves infested; 7% economic. This scale is currently below
normal abundance and will decrease further. Highest district is South (1.07).

Chaff Scale: 66% of groves infested; 147. economic. Population is normal and at mod-
erate level; decrease is expected. Highest districts are South (1.20) and East (1.10).

Yello'- Scale: 73% of groves infested; 16% economic. Population is above average but
is decreasing. Highest districts are Central (1.15) and East (1.05).

Mealybug: 86% of groves infested; 47% economic.
Population continued to increase beyond July 1, which is unusual, and is approaching
the record high level attained in June of 1964. Decrease may be expected in August.
All districts are high: East (2.35) South (1.69) Central (1.50) North (1.23) and
West (1.19).

Whitefly: 53% of groves infested; 18% economic. Population is slightly below normal
and at moderate level; decrease is expected.

Spray Notes: The abnormally high populations of black scale and mealybug will cause sooty
mold to be abundant this year. Summer sprays containing 0.57. or more of oil will loosen
sooty mold and aid its removal by wind and rain. Oil sprays may retard color break and
solids formation in fruit if applied later than July. This is especially important
where early varieties for the fresh fruit market are concerned.
650-July 18, 1966 WAS W. A. Simanton


CES Mimeo Series 67-2


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