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Effects of Neighboring Nectar-Producing Plants on Populations of Pest Lepidoptera and Their Parasitoids in Broccoli Plantings
The effects of some of these nectar-producing plants interplanted with or adjacent to broccoli on densities of the major Lepidoptera pests, especially the imported cabbageworm, diamondback moth, Plutella xylostella, and cabbage looper, were evaluated.
Releases of Calosoma sycophanta (Coleoptera: Carabidae) Near the Edge of Gypsy Moth (Lepidoptera: Lymantriidae) Distribution
Results indicate that it may be useful to release the beetle into other parts of the leading edge of gypsy moth infestation and in other areas where the beetle is not abundant, and show that the beetle was capable of reproducing in release areas.
Effects of Temperature on Longevity, Reproduction, and Development of the Asparagus Aphid (Homoptera: Aphididae) and the Parasitoid, Diaeretiella rapae (Hymenoptera: Braconidae)
Investigation of the effects of various constant temperatures on longevity, fecundity, reproductive rate, and developmental rate of the asparagus aphid and its parasitoid suggested that biotype differences are present between this population and other D. rapae populations reported in the literature.
Establishment in the United States of Tetrastichus julis, a Larval Parasite of the Cereal Leaf Beetle
The cereal leaf beetle, Oulema melanopus (L.), a Eurasian pest of small grains, was first identified in 1962 from specimens collected in Berrien Co., Mich., although damage had been observed as early
Crochets on Abdominal Segments 2 and 7 of Dalcerid Caterpillars: “Missing Link” or Anomaly?
Late instar larvae of two available Dalceridae (Lepidoptera) possess ventral crochets (hooks) on abdominal segments 2 and 7, a condition never before reported; ventral crochets normally occur only on
Evaluating the effects of harvesting alfalfa on alfalfa weevil (Coleoptera: Curculionidae) and parasite populations in Michigan.
Different cutting dates were evaluated to determine the effects of cutting on populations of the alfalfa weevil, its primary parasite in Michigan, Bathyplectes curculionis (Thomson), and damage to the crop.