Journal Article Biology of Bracon mellitor, a Parasite the Boll Weevil Get access Curtis H. Adams, Adams Search for other works by this author on: Oxford Academic PubMed Google Scholar William Cross, Cross C. Mitchell Economic Entomology, Volume 62, Issue 4, 1 August 1969, Pages 889–896, https://doi.org/10.1093/jee/62.4.889 Published: 01 1969 history Accepted: 12 March

Heterolaccus grandis Burks parasitizes the 3rd instar of Anthonomus Boheman in parts Costa Rica, Nicaragua, Guatemala, and Mexico. It has been described as a primary parasite this pest. In laboratory, developmental period was 15–17 days for males 17–18 females at 24–27°C 45±2% RH. The incubation egg 27–29 hours. larvae, which were cannibalistic, have 3 stadia larval 4.5–5.5 days. pupal stage 6–7 8 females. Oviposition began 3–4 after adult eclosion. Females deposited an average 6.38 eggs per...

Pesticide active ingredients are frequently detected in the rivers, creeks, wetlands, estuaries, and marine waters of Great Barrier Reef (GBR) region one main contributors to poor water quality. concentrations environment through quality monitoring programs can be compared against estimates ecologically "safe" (i.e., guidelines) assess potential hazard risk posed aquatic ecosystems. Water guidelines also required estimate by pesticide mixtures, which is used for 2050 Quality Improvement Plan...

Journal Article Boll Weevils: Response to Light Sources and Colors on Traps , Get access William H. Cross, Cross Mississippi State, MS 39762 4Boll Weevil Res. Lab., Agric. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar C. Mitchell, Mitchell 5Mississippi Ext. Serv. D. Hardee 6Story Chemical Co., Starkville, 39759. Environmental Entomology, Volume 5, Issue 3, 1 June 1976, Pages 565–571, https://doi.org/10.1093/ee/5.3.565 Published: 01 1976 history...

Journal Article Biological Factors Influencing Responses of the Female Boll Weevil to Male Sex Pheromone in Field and Large-Cage Tests Get access D. Hardee, Hardee Research Laboratory, Entomology Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar W. H. Cross, Cross E. B. Mitchell, Mitchell P. M. Huddleston, Huddleston C. Merkl, Merkl T. Davich Economic Entomology, Volume 62, Issue 1, 1 February...

Journal Article Behavior of the Boll Weevil on Frego Bract Cotton Get access H. C. Mitchell, Mitchell 4 Research Laboratory, Agric. Res. Serv., USDA, Mississippi State 39762 4Present address: Extension Service, 36792. Search for other works by this author on: Oxford Academic PubMed Google Scholar W. Cross, Cross L. McGovern, McGovern E. M. Dawson 5 5Present Western Insects Investigations, Phoenix, Ariz. 85040. Economic Entomology, Volume 66, Issue 3, 1 June 1973, Pages 677–680,...

Dispersal of the boll weevil, Anthonomus grandis Boheman, was studied in Mississippi from 1970 through 1973 by releasing marked adults central fields planted to cotton and locating traps at various distances directions. The maximum sampled were 10.4 miles 1970, 24 1971 50 1972 1973. Of total 383,061 native weevils released, 265 recaptured release site 1 33 miles. Marked 1971. longest distance, miles, recorded during study.

When female Anthonomus grandis Boheman in large plots or cages were captured 12 kinds of traps, all baited with males various extracts males, a small Stikem®-coated plywood trap and Plexiglas® screen funnel proved to be the most efficient designs. Few no females responded empty traps (controls), preponderance came from downwind. Thus, wind-borne sex attractant is produced by male boll weevils. The captures indicated preference for live over 1.8:1 when comparisons made on different days 6.2:1...

Tests with traps baited male Anthonomus grandis Boheman indicated that early-spring temperature influenced emergence of overwintered weevils but rainfall had more influence as temperatures increased. Since higher percentages males than females were captured early in the spring and reverse became true later, pheromone may serve initially an aggregating factor then subsequently a sex attractant. Most emerged little fat reserve, variation amount reserve among individuals account for boll over...

Optimum conditions were determined for capturing. Anthonomus grandis Boheman in traps baited with males. Metal wing painted daylight fluorescent yellow over a white undercoat (about 4×6-m. wings × 9-in. base) and coated With an adhesive. Traps male boll weevils which held container single layer of screen placed at heights 1–3 ft above ground around cotton field adjacent to overwintering sites. This system, or slight modification, would be useful subsequent surveys control possible...

Pesticide active ingredients are frequently detected in the rivers, creeks, wetlands, estuaries, and marine waters of Great Barrier Reef (GBR) region one main contributors to poor water quality. concentrations environment through quality monitoring programs can be compared against estimates ecologically "safe" (i.e., guidelines) assess potential hazard risk posed aquatic ecosystems. Water guidelines also required estimate by pesticide mixtures, which is used for 2050 Quality Improvement Plan...

Journal Article Boll Weevils: Tagging for Hibernation and Field Studies Get access H. C. Mitchell, Mitchell 4 Southern Region, Agric. Res. Serv., USDA, Mississippi State, 39762 4Present address: Extension Service, Box 5426, Miss, 39762. Search other works by this author on: Oxford Academic PubMed Google Scholar W. L. McGovern, McGovern Cross, Cross N. Mitlin of Economic Entomology, Volume 66, Issue 2, 16 April 1973, Pages 563–564, https://doi.org/10.1093/jee/66.2.563 Published: 1973 history...

Background and Objective: Water quality problem would affect aquatic life described as the conditions of water, including chemical, physical, biological aesthetic (appearance smell) characteristics.This paper thus discusses on effects water parameters towards mortality rate river catfish (Pangasius Hypopthalmus) larvae henceforth, aims to identify factors affecting this using exponential models.Materials Methods: Data were collected from Borneo Marine Research Institute (BMRI) in Universiti...