WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Wednesday, December 19, 2018

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Search results on 12/19/18

1069. Brindley, T.A. and W.E. Shull. 1940. Pea weevil controls.. U of Idaho Extension Bull. #132.
Pea weevil (Bruchus pisorum); dusting with rotenone (1%), apply 20 lb/ac of dust; carrier is talc or diatomaceous earth; much rotenone toxicity is lost in 24 hrs due to sunlight; rough threshold for control is 5 weevils in 25 sweeps; discusses dusting equipment; dusting cost about $1.88/ac.

2693. Homan, H. and L.E. O'Keefe. 1979. Pea weevil and its control.. ID Agr. Expt. Sta. CIS. #475.
Attack pea at flowering; often feed at field margins; do not move quickly, eggs laid in new pods; no damage on dried peas; plant weevil - free seed, sanitize field residue; 1 weevil in 100 sweeps at flowering is economic threshold for processing peas, 3 in 50 for dry peas; winter peas more succeptible than spring peas. T: Weevil infestations, insecticide treatments.

2937. Idaho Agr. Expt. Sta.. 1939. Annual Report. Id Agr. Expt. Sta. Bull. #229.
1% rotenone dust (at 20-40 lb/ac) good pea weevil control; use of border trap strips in combination with dusting, reduced the area needing treatments; burial of weevils at 6" killed them.

2955. Idaho Agr. Expt. Stat.. 1937. Annual Report. ID Agr. Expt. Sta. Bull. #221.
Reference to night plowing of border catch crop to control pea weevil (p.13); pea weevil insecticides - derris dust plus tobacco dust; cryolite, derris dust and diatomaceous earth; derris dust and sulfur.

5301. Piper, C.V.. 1892. Two injurous insects.. WA ST. Agr. Expt. Sta. Bull. #7.
Recommends: only using well-cleaned seed; fumigate seed with carbon bisulfide; treat seed in 145 deg. water for 2 minutes; Store seeds for 2 years; see that neighbors take the same precaution.

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