Idaho
                     Aphid
                Flyer

James B. Johnson, Juan M. Alvarez, & Monica A. Wiebe
September 21 , 2001                                                                                                                  Vol. 16 No. 
9

 LAST ISSUE
   This will be the last Aphid Flyer for 2001. If any problems arise, we will alert the agents in your area. As you can see from the aphid counts below, it is probably safe to plant fall grain crops without chemical applications. We hope to have a lot of snow this winter, which may help with any further insect problems. 

Thank You
       This Flyer is to thank all the cooperators around the state, for all their help in the changing and mailing of the aphid canisters. Everyone has to work together to make this all happen, and this year seems to be the best year yet.  

Cooperators:
Arbon
- Alan Larsen, Burley- Roy Hansen, Kimberly- Richard Hayes, Lewiston- Jeff Becker, Moscow- Gary Chang, Parma- Joyce Ashcraft, Picabo- Terry Sherbine, Ririe- Chuck Summers
Rockland- Art & Larry Kress, Soda Springs- Craig Corbett, Tetonia- Jim Whitmore.

Hobo Spiders
    It seems like the number of encounters with hobo spiders (a.k.a. aggressive house spiders) has increased lately.  At this time of the year, males are looking for females, so they will go anywhere hoping to find a mate.  Males are more venomous than females.  They usually enter houses through ground level or below ground level openings.  Therefore, we should try to close possible entrance points such as broken windows or screens, and gaps underneath doors.  If you don’t have a large infestation, chemical control should not be attempted.  Although crushing spiders with a newspaper works, sticky traps seem to be the best bet at eliminating hobos.  To prevent bites wear protective clothing when working in infested areas and wear gloves when moving wood.  A person bitten by a spider should seek medical assistance.

For the correct identification of hobo spiders look at our web site:
www.uidaho.edu/so-id/entomology/Spiders.htm
Or find lots of photographs in the following way.  Go to this finder:
www.images.googler.com
and type “hobo spider”.  This search engine will give you many pictures.

Funded by the University of Idaho Agricultural Experiment Stations and the Wheat & Barley Commissions.

 

IDAHO
APHID DATA

Samples collected September 7 & 14, 2001 

Cereal

)Others

Total

Suction Trap Location

Russian Wheat Aphid

Green Bug

Bird Cherry Oat Aphid

English Grain Aphid

Rose Grass Aphid

Corn Leaf Aphid

Apple Grain Aphid

Green Peach Aphid

Potato Aphid

Pea Aphid

Spotted Alfalfa Aphid

Bean Aphid

(All Aphids)

Moscow

1
- 1

1
- - - - - - - - 2
4

Lewiston

- - - - - - - - - - - - NS

Parma

- - 15
22
- - 4
- - - - - - 24
34

Picabo

2
- 4
3
- 1
- - - 1
- 1

2
18
30

Kimberly

- -
8
- -
1

1
- - - 1

4
8
30

Burley

- -
2
- -
1

1
- - - - 44
317
92
386

Aberdeen


2
- 7
10
- 2
2
- - 7
- - 80
111
168
198

Rockland

1
- 1
- - 1
- - - - - - 22
0

Arbon

- -
1
- - 1
1
- - - - - 1
1
136
6

Soda Springs

64
13
- 4
4
- - 1

1
- - - - - 116
60

Ririe

1
- 2
- - - - - - - - - 20

Tetonia

2
1
1
11
- 1
- - - - - - - 55
10