Control of Manure Breeding Flies in Poultry Houses with CGA-72662, 1980
Authors: Smith Judith A. , Collison Clarence H. 
Published: March 2022

Seven high rise and two shallow pit poultry houses located in Lancaster Co., PA were used to evaluate me Insect growth inhibitor CGA-72662 for controlling manure breeding flies. Three different treatment applications were tested; ie, mixed in the poultry feed, metered through me water, and sprayed directly on the manure surface. Changes In house fly populations were monitored by counting the number of adult flies resting within ft2 marked areas on the walls and by counting the number of flies that emerged from weekly 2 x 3 inch core samples of manure that were held for 2 weeks. As a feed through, 1 lb of CGA-72662 0.3% premlx per ton of feed was tested in two high rise and two shallow pit houses. The high rise house at Washington Boro, PA was 43 x 400 ft and housed 50,000 caged layers. The house was completely cleaned out and 18 week old birds were moved in on June 12. Growth inhibitor was fed from June 19 to July 27. The second high rise house at Lititz, PA was 44 by 304 ft and housed 38,000 caged layers that had been in place since Sept’79. The only fly control measures taken prior to treatment were removing the manure on April 12 and on May 12. Feed with growth inhibitor was fed from July 9 to Aug 7 and from Aug 14 to Aug 18. Birds were removed on Aug 27. The two shallow pit houses at Rheems, PA were 30 by 265 ft and had 12,000 caged layers each. Both flocks had been in place since Oct’79 and the only fly control measures taken were regular manure removal every 5 to 6 weeks and occasional baiting with Improved Golden Malrin (Lannate). In house A, growth inhibitor was fed to half of the birds from July 22 to Sept 12 and to the other half from Sept 6 to Oct 6. In house B, the feed additive was fed to half of the birds from July 25 to Sept 9. When the growth inhibitor was metered into the water supply, 3 ml CGA-72662 5% SC per 100 gal water, it was tested in two high rise houses. The house at Cocalico, PA was 42 by 376 ft and housed 65,000 pullets. Birds were 10 weeks old when growth inhibitor was added to the water supply on June 17 and was continued until July 22. All but 56 ft of manure was removed on June 27. Birds were removed and house cleaned out on July 29. The house at Manheim, PA was 52 x 525 ft and housed 81,000 caged layers. The flock had been in place since Nov’79, and pyrethrin space sprays were used regularly before testing and when the medicators malfunctioned. A Pydrin (fenvalerate) residual spray was applied to walls and posts on July 12. The growth inhibitor was used dally from June 26 to July 31 in four cage rows (ABCD). On July 24, CGA-72662 was started on the remaining two rows. No growth inhibitor was used from July 31 to Aug 5, then treatments were rotated between double rows every other day until Aug 12. From Aug 13 to Sept 3, all six rows received inhibitor with no problems encountered. No treating was done between Sept 3 and Sept 9, then all rows were treated three times per week for the following two weeks. On Sept 17, treatments went to a weekly schedule until Oct 1, when they were returned to three times per week. Manure was removed on Aug 26 and birds went out on Oct 28. When CGA-72662 5% SC was sprayed directly on the manure surface, tests were conducted in three high rise houses. The house at Mastersonville, PA was 36 by 436 ft with 40,000 caged layers. The flock had been in place since Oct’79 and 2 gal 0.5% Atroban 25% WP (permethrin) was applied to the posts on May 20’80. A total of 100 gal of 0.05% CGA-72662 was applied to the manure surface on June 2 and June 16 at a rate of 0.6 gal/100 sq ft with a piston pump at 150 psi/sq ft. Manure was removed on June 25. The house at Mount Joy, PA was 52 by 400 ft and housed 60,000 caged layers. The flock had been in place since Dec179, manure was removed in April, and Poultry Spray and Larvicide (Rabon + Vapona) was sprayed as a residual on June 10. Growth inhibitor was sprayed on the manure surface with a low pressure pump at 50 psi/sq ft on June 23, July 7, and Aug 15. A total of 200 gal was applied each time at a rate of 0.8 gal/sq ft. Manure was removed Aug 4. The house at Columbia, PA was 52 by 400 ft and housed 60,000 caged layers. The flock had been in place since Jan and on July 18 wasps (Preromalids - 6 colonies) were added to control the fly population. A total of 120 gal of 0.05% CGA-72662 was applied by a commercial sprayer at 300 psi/sq ft to 5 of 6 rows of manure. Applications were made on July 22 and Aug 5 at a rate of 1 gal/100 sq ft.