peanut diseases & insects scsc 306: grain, fiber, & oilseed crops wayne smith professor,...
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PeanutDiseases & Insects
SCSC 306: Grain, Fiber, & Oilseed Crops
Wayne Smith
Professor, Cotton Breeding
Office: (979) 845-3450
Email: [email protected]
OSU Extension
SCSC 306: Peanut Diseases
OSU Extension
SCSC 306: Peanut Diseases
Number of “rots” affect peanuts. Limb rot is an example. Control of all of the “rots” are similar as shown below.
OSU Extension photo/comments
SCSC 306: Peanut Diseases
SCSC 306: Peanut Diseases
Photo: courtesy of OSU Coop. Ext. Service
SCSC 306: Peanut Diseases
Root-knot nematodes can be effectively controlled with crop rotation; However, root-lesion nematodes are moreDifficult to control.Crop rotation has not been effective in reducing levels of this species because it has a wide host range and can reproduce on most rotational crops .
Leaf spots, caused by Cercospora or Cercosporidium fungi, are the most common and serious diseases of peanut. Control is by field sanitation and fungicides. (see next slide) [Photos from OSU Cooperative Extension]
SCSC 306: Peanut DiseasesLeaf Spots
Early and Late Leafspots in peanut (slide 2)SCSC 306: Peanut Diseases
OSU Cooperative Extension
SCSC 306: Peanut Diseases
Scerotinia Blight is probably the most serious disease of peanut in Texas
Photos: OSU Extension
SCSC 306: Peanut Diseases
SCSC 306: Peanut Diseases
PSV is seed borne and aphid transmitted; Control is by avoiding seed not certified to be PSV free; no chemical nor host plant resistance (chemical control of aphid may help)
OSU
Coop.
Ext.
SCSC 306: Peanut Diseases
Spread is vectored by thrips and thus control of thrips with insecticide may be mandated; not transmitted through seed.
Photos: OSU Extension
SCSC 306: Peanut Diseases