Title: Citrus insect and disease summary
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Permanent Link: http://ufdc.ufl.edu/UF00066150/00091
 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 October 1970
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: VID00091
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


c f/ ./ /2 CITRUS EXPERIMENT STATION CS M S 7-
/LAKE ALFRED, FLORIDA CES Mimeo Series 71-12
LAKE ALFRED, FLORIDA

CITRUS INSECT AND DISEASE SUMMARY
MID-OCTOBER 1970

Statewide Index of Abundance

End Sept. Mid Oct. Trend End Sept. Mid Oct. Trend
2.0
Fruit

V--;-
n-"
Rust mite
1.5
Leaves
High for
mites t >Whitefly Larvae

High for ---Whitefly Adult
-1.0 scales;
whitefly

-___-----> Glover sc

0.5 C. red mite *---*----- Purple s
0.5 k = -X
O- ---OC > Snow sc

Texas C. mite

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

Citrus Rust Mite: 81% of groves infested (Norm 67%); 65% economic (Norm 41%).
This pest continued in the high range. The population on leaves is the highest for
mid-October in 19 years of record. Population on fruit is near the record high level.
Decrease is expected in November. Highest districts are South (2.37) West (2.10) North
(1.78) Central (1.70) and East (1.25).
Citrus Red Mite: 267 of groves infested (Norm 23%); 8% economic (Norm 5%).
Population is above normal but is still at low level in all districts. Highest
district is Central (.61) The fall increase has started and scattered heavy infesta-
tions may be expected.
Texas Citrus Mite: 20% of groves infested (Norm 18%); 6% economic (Norm 4%).
Population is near normal and low in all districts. Buildup is expected especially
in young groves. Highest district is Central (.52).
Glover Scale: 60% of groves infested (Norm 56%); 6% economic (Norm 7%).
Population is near normal and moderate. Little change is expected. Highest
distric- is South (.82).

Purile Scale: 52% of groves infested (Norm 53%); 3% economic (Norm 2%).
Population is normal and low. Although increase is expected, infestations will
not be severe. Highest district is North (.71).
Black Scale: 44% of groves infested (Norm 35%); 18% economic (Norm 13%).
Population is at low level but above normal. Decrease is expected through October;
litLle change in November. Only Central district is high (1.13).
yelloww scale and chaff scale will remain very low in all districts.
Snow Scale: 28% of groves infested; 15% with moderate to heavy infestations. The
record high level of September persisted into October. Decrease is expected in late
October which little change thereafter.
Whitefly- 88% of groves infested; 29% economic.
Population increased and is near the record high October level of a year ago.
Decrease to moderate level is expected in November. Highest districts are North (1.48)
and Ensi (1.23).

Spray Nt'es: If brown rot should appear on fruit, spray the entire tree immediately.
Use 2 pounds of metallic copper in neutral form per 500 gallons of spray. Disc or mow
i-he cover crop to improve ventilation.
Drying of the cover crop due to maturity or cultivation may cause plant bugs and
stink bugs to move to succulent cL LU c~a d pu .are.u.t the mi during fruit. For control
apply parathion 4 liquid at 2.5 p ntH~ ^Eo$L4FBB i t ee outer canopy as soon as
.he bugs move in.

600 October 20, 1970 WAS OCT 29 1970 W. A. Simanton


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