Title: Citrus insect and disease summary
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00018
 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 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: VID00018
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
^'-v CITRUS EXPERIMENT STATION
LAKE ALFRED, FLORIDA *-*
CES Mimeo Series 67-30
CITRUS INSECT AND DISEASE SUMMARY
END OF APRIL 1967

Statewide Index of Abundance
Mid End Mid End
Trend Trend
-2.0 Apr Apr Apr Apr
Rust mite
^- --)>
4-' Texas C. mite
-1.5 0 '
Scales
__ High for
S__.-> Glover
mites

1, - O0 --- High for
C. rd scales ......... -. > purple
C. red miti
0 --> Yellow
S_- > Chaff

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: 74% of groves infested (Norm 58%); 63% economic (Norm 34%).
Population advanced to a new record high level for April and will continue in the
high range. Highest districts are West (2.33) South (2.10) Central (1.85) and North (1.54).
Texas Citrus Mite: 74% of groves infested (Norm 43%); 51% economic (Norm 19%).
Population of this mite also increased to a record high level for April and has en-
tered the high range. Further increase is expected as mites build up on new leaves.
Highest districts are West (1.89) North (1.69) South (1.46) and Central (1.41).
Citrus Red Mite: 63% of groves infested (Norm 47%); 31% economic (Norm 17%).
This mite continues to be more abundant than average. Statewide population will
remain at moderate level but with some heavy infestations in all districts. Highest
districts are North (1.46) West (1.44) and South (.92).

Glover Scale: 87% of groves infested; 27% economic. Statewide population of this scale
is above average. It will increase further into the high range. Highest districts are
East (1.41) Central (1.31) and South (1.28).
Purple Scale: 81% of groves infested; 15% economic. This scale will continue to be in
normal abundance but with very few heavy infestations. Highest district is Central (1.24).
Yellow Scale: 74% of groves infested; 2% economic. Population will increase through
June but infestations will be much lighter than in recent years. Highest district is
West (.92).
Chaff Scale: 60% of groves infested; 6% economic. Gradual increase is expected; however,
population will remain below normal and in the low to moderate range. Highest district
is East (.82).
Black Scale: 21% of groves infested; 6% economic. Population is below the average of
recent years. It will remain low despite the gradual increase expected late in May.
Highest district is East (.77).

Snow Scale is increasing in infested groves.

Whitefly adults reached the spring population peak in early April. Eggs are now present
in above normal numbers.

Six-spotted mite and mealybug are scarce and of no concern at this time.

Spray Notes: Where rust mite must be controlled in May, use 25 lbs of wettable sulfur,
or 1.25 pints of chlorobenzilate 4E or 0.5 pint of Nabac 50E per 500 gallons. If spider
mites as well as rust mite must be controlled, use 2.5 pints of either Delnav 4 liquid,
ethion 4 liquid or Trithion 4 liquid or 4.0 pints of Kelthane MF per 500 gallons. For
black scale and rust mite use 5.0 pints of Guthion 2 liquid.


700 May 3, 1967 WAS


W. A. Simanton




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