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Development of the fall armyworm on cotton, soybean and corn [Spodoptera frugiperda].
Assessment of Early-Season Phenology of the Fall Armyworm (Lepidoptera: Noctuidae) in Mississippi
Application of a procedure for examining the early-season phenology of the fall armyworm by estimating the ages of field-collected larval cohorts provided evidence that the observed populations were initiated by immigrant adults. Expand
Greenhouse Studies of the Host Range of Dalbulus maidis, a Vector of the Corn Stunt Virus
- H. Pitre
- 1 April 1967
The host range of the corn leafhopper, Calculus maids (belong and Alcott), was studied in the greenhouse by determining the suitability of various plant species to this vector of the corn stunt virus… Expand
Feeding sites and distribution of fall armyworm (Lepidoptera: Noctuidae) larvae on cotton.
Feeding sites and survival of larvae in greenhouse and field cages were similar, and later instars (fifth and sixth) were observed on middle to terminal portions of the plant, including branch tips, while in the interplant movement study, larvae remained predominantly within average distances of 1 to 2.4 plants from the infested plant. Expand
Fall Armyworm (Lepidoptera: Noctuidae) Oviposition: Crop Preferences and Egg Distribution on Plants
Of eight crop plant species evaluated for egg-laying preference (egg masses deposited) by the fall armyworm, ryegrass, wheat, corn, and sorghum were the most preferred, whereas cotton and soybean were the least preferred. Expand
Distribution of Fall Armyworm (Lepidoptera: Noctuidae) Egg Masses on Cotton
The fall armyworm, Spodoptera frugiperda (J. E. Smith), oviposited on plants in all phenological stages (presquaring, squaring, early bloom, full bloom, mature boll, and open boll) of cotton,… Expand
Comparison of Sampling Techniques to Obtain Measurements of Insect Populations on Soybeans
Relative size estimates of populations of selected insect species on ‘Bragg‘ soybeans were determined from four 15-in. sweepnet and one groundcloth-shake sampling techniques. Comparing relative… Expand
Semipersistent transmission of leafhopper-borne maize chlorotic dwarf virus.
Maize chlorotic dwarf virus (MCDV), an isometric virus associated with a stunting disease of maize, has a semipersistent relationship with its leafhopper vector, Graminella nigrifrons (Forbes).… Expand
Distribution of bean pod mottle disease on soybeans in Mississippi.
Resistance to Pyrethroid Insecticides in Soybean Looper (Lepidoptera: Noctuidae) in Mississippi
Recommended rates of pyrethroid insecticides failed to give adequate control of soybean looper, Pseudoplusia includens (Walker), on soybean in some areas of the alluvial plain (Delta) region of… Expand