Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00003
 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 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: VID00003
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 *-*

CITRUS INSECT AND DISEASE SUMMARY CES Mimeo Series 67-3
END OF JULY 1966
Statewide Index of Abundance
-- -
Mid End Trend Mid End-' Trend
2.0 July July July July
2.0 ,
":Black sc.


Rust mite- .
Hih for >-- ~~Mealybug
S __- High for
mites
---- > < e3*
S> 'zo Texas C. mite m t
1/' Ta CHigh for___
1.0 0 scales, 0 -r
whitefly, o Glover sc
mealybug Y >Yellow sc.
C. red mite
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: 627 of groves infested (Norm 65%); 41% economic (Norm 48%).
Population is near the high range but slightly below average for the season. Some
further increase is expected until the summer peak is reached about mid-August. High-
est districts are West (2.18) South (1.62) North (1.19) and Central (1.16).

Texas Citrus Mite: 57% of groves infested (Norm 67%); 36% economic (Norm 41%).
Population has dropped to moderate level and is below average. Scattered heavy
infestations will occur through August. Decrease is expected. Highest districts are
East (1.69) and Central (1.45).

Citrus Red Mite: 53% of groves infested (Norm 71%); 307 economic (Norm 407.).
Population is the lowest for July in 15 years of record. Very few infestations
will be heavy. Further decrease is expected. Highest district is East (1.38).

Black Scale: Population is still at the highest level on record for July but has
dropped slightly from the 15 year high level recorded at mid-July. Decrease
is expected. All districts are high: East (2.69) Central (2.35) South (2.30)
West (2.09) and North (2.00).

Glover Scale: 76% of groves infested; 227 economic. This scale is above average
abundance but has dropped to moderate level and will decrease further through August.
Highest districts are East (1.31) South (1.20) and Central (1.05).
Purple Scale: 61% of groves infested; 3% economic. Population is at the normal low
level. Decrease is expected. Highest district is South (.90).
Chaff Scale: 46% of groves infested; 6% economic. Population is below normal, and
at low level. Decrease is expected. Highest district is East (.92).
Yellow Scale: 66% of groves infested; 11% economic. This scale is above average
abundance and in the moderate range. Decrease is expected through August. Highest
districts are East (1.00) Central (.90) and West (.82).

Mealybug: 85% of groves infested; 39% economic. Population dropped slightly from the
very high level recorded at the mid-July peak. Gradual decrease is expected through
August, but with abnormally high numbers of mealybugs persisting into September.
All districts are high: East (1.65) South (1.64) Central (1.31) North (1.29) and
West (1.12).

Whitefly: 48% of groves infested; 15% economic. Population is below normal and in
the moderate range with decrease expected.

Spray Notes: Frequent heavy rains have reduced the effectiveness of rust mite sprays
by washing off the residues and by promoting dense foliage that makes good coverage
difficult. For supplemental rust mite control in August, wettable sulfur at 25 pounds
per 500 gals. should give quick results. Sulfur dust is likely to be washed off too
readily. Sulfur should not be applied within 3 weeks of an oil spray.


650-August 2, 1966-WAS


W. A. Simanton




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