University of Arizona a dot Cooperative Extension

Arizona Head Lettuce Insect Losses 2000/2001

 

Yuma County

Acres surveyed

Avg. yield/ac (cartons)

Potential yield (cartons)

5547

845

1000

 

% Yield Reduction:

            weather

            chemical

            disease

            insects

            weeds

            other

10

15

10

0

5

0

Application Costs:

Aerial

   % acres treated by air

   Avg no. treatmenst by air

   Cost / application ($)

Ground

    % acres treated by air

   Avg no. treatmenst by air

   Cost / application ($)

 

 

 

 

100

3


9

 

100

2


13

 

 

Insect Management:

   No. acres scouted

   No. field visits /week

   Monitoring acres ($)

5547


3


22

 

 
 

Acres
Infested

(%)

Acres
treated

(%)

Insecticides
Applications

(No. /acre)

Control
costs

($/acre)

Yield
loss

(%)

   

Soil

Chem.

Foliar

Soil

Chem.

Foliar

   

Seedling pests

    fall

    spring

10

0

0

0

10

0

0

0

0

0

1

0

0

0

5.00

0

0

0

Flea beetles

    fall

    spring

10

0

0

0

10

0

0

0

0

0

1

0

0

0

5.00

0

0

0

Salt marsh caterpillar

    fall

    spring

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Leafminer

    fall

    spring

40

30

0

0

0

0

10

10

0

0

0

0

1

1

38.00

45.00

0

0

Beet Armyworm

    fall

    spring

67

33

0

0

0

0

67

33

0

0

0

0

4

1

31.00

31.00

0

0

Cabbage looper

    fall

    spring

60

33

0

0

0

0

60

30


0

0

0

0

3

2

31.00

41.00

0

0

TBW/CEW

    fall

    spring

60

30

0

0

0

0

60

30


0

0

0

0

3

2

31.00

41.00

0

0

Whitefly

    fall

    spring

40

0

40

0

40

0

0

0

1

1

0

0

0

0

57.00

0

0

0

Green Peach/Potato aphid complex

    fall

    spring

0

50

0

50

0

0

0

0

0

1

0

0

0

0

0

57.00

0

0

Lettuce/Foxglove
aphid complex

    fall

    spring

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Thrips

    fall

    spring

100

100

0

0

0

0

100

100

0

0

0

0

2

3

39.00

39.00

10

10

Lygus bugs

    fall

    spring

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0


Full Disclaimers

Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, James A. Christenson, Director Cooperative Extension, College of Agriculture and Life Sciences, The University of Arizona.

The University of Arizona is an equal opportunity, affirmative action institution. The University does not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, or sexual orientation in its programs and activities.

Any products, services, or organizations that are mentioned, shown, or indirectly implied in this web document do not imply endorsement by The University of Arizona.


Information provided by:
John C. Palumbo, jpalumbo@ag.arizona.edu Associate Research Scientist (Entomology)
University of Arizona, Tucson, Arizona.
Material written December 2001.

Vegetable Insects | Vegetable Insect Pubs | Vegetable Insect Data | Advisories | Pesticides | Photos
Home | Vegetables | All Insects



document located at: http://cals.arizona.edu/crops/vegetables/insects/lil/2000/lil0001.html
Copyright © 2001 University of Arizona,
College of Agriculture and Life Sciences
webmaster: jsjones@ag.arizona.edu