Aphid Alert

No. 2b, posted
20 June, 1999

Published cooperatively by
departments of Entomology & Plant Pathology,
College of Agricultural, Food and Environmental Sciences,
University of Minnesota,
the University of Minnesota Extension Service,
and the State Seed Potato Programs of
Minnesota and North Dakota

Funding provided by:
1998 Minnesota State Legislature
& United States Department of Agriculture,
Cooperative State Research, Education and Extension
Service,
Integrated Pest Management Program,
North Central Region

WWW address: <http://ipmworld.umn.edu/alert.htm>

Summer 1999: Aphid trapping data.

Results reported in this issue of Aphid Alert are total captures of winged aphids and species identifications for the following locations and sampling interval end-dates.  Additional sampling locations will be reported in next week's issue of this newsletter. 

Also, potato leafhoppers are extremely abundant in 1999.   Potato leafhoppers do not transmit potato pathogens, but feeding by this insect can severely damage potatoes.   Choose insecticide chemistries and rates with caution to avoid flaring aphids.

With the early arrival of green peach aphid, the high amount of virus inoculum in some seed lots planted this spring, and the wet weather which has necessitated an early initiation of spraying to control late blight, this has the potential to be a very difficult year. 

We intend to establish a list of e-mail addresses to facilitate communication with those of you interested in receiving updates about this research or any resulting advisories sooner than this information can be delivered by mail or even before it is posted on the WWW.  If you wish your name added to receive such messages please send us an e-mail at radcl001@umn.edu.   In the message, write "Aphid Alert subscribe."

ERRORS: If you find errors, typographic or factual, we would appreciate having them called to our attention so they can be corrected.  Phone: Robert Suranyi (218) 773-3346 or Ted Radcliffe (612) 624-773 or send an e-mail to radcl001@umn.edu.

No. captured

% of total capture

20

90.9

1

4.6

1

4.6

22

17

94.4

1

5.6

18

# captured

% of total capture

3

15.0

16

80.0

1

5.0

20

# captured

% of total capture

7

46.7

2

13.3

1

6.7

1

6.7

4

26.7

15

# captured

% of total capture

3

42.8

7

# captured

% of total capture

1

100.0

1

# captured

% of total capture

1

14.3

4

57.1

2

28.6

7

# captured

% of total capture

1

10.0

3

30.0

1

10.0

1

10.0

4

40.0

10

# captured

% of total capture

10

90.9

1

9.1

11

# captured

% of total capture

2

5.1

11

28.2

2

5.1

2

5.1

6

15.4

5

12.8

11

28.2

39

# captured

% of total capture

5

41.7

1

8.3

1

8.3

2

16.7

3

25.0

12

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