Sulfuryl fluoride as a methyl bromide alternative for fumigation of Necrobia rufipes (Coleoptera: Cleridae) and Tyrophagus putrescentiae (Sarcoptiformes: Acaridae), major pests of animal-based stored products

2021 ◽  
Vol 91 ◽  
pp. 101769
Author(s):  
Md Mahbub Hasan ◽  
Michael J. Aikins ◽  
M. Wes Schilling ◽  
Thomas W. Phillips
Keyword(s):  
Methyl Bromide ◽  
Stored Products ◽  
Tyrophagus Putrescentiae ◽  
Sulfuryl Fluoride

Comparison of Methyl Bromide and Phosphine for Fumigation of Necrobia rufipes (Coleoptera: Cleridae) and Tyrophagus putrescentiae (Sarcoptiformes: Acaridae), Pests of High-Value Stored Products

2019 ◽  
Vol 113 (2) ◽  
pp. 1008-1014 ◽  
Author(s):  
Md Mahbub Hasan ◽  
M Jamie Aikins ◽  
M Wesley Schilling ◽  
Thomas W Phillips
Keyword(s):  
Methyl Bromide ◽  
Value Added ◽  
The United States ◽  
Metal Corrosion ◽  
Treatment Schedule ◽  
Stored Products ◽  
Tyrophagus Putrescentiae ◽  
Complete Control ◽  
Dry Cured Ham ◽  
Mold Mite

Abstract Fumigation with methyl bromide has been a long established and effective method for controlling many pests of stored products, including the key major pests that infest dry-cured hams, aged cheese, and other value-added durable stored products. Methyl bromide had been widely used for the disinfestation of dry-cured ham facilities in the United States, but is now phased out of use since it is an ozone-depleting substance. This paper reports laboratory studies to evaluate the efficacies of methyl bromide and phosphine for controlling two of the key arthropod pests of dry-cured hams and aged cheeses. Larvae of the red-legged ham beetle, Necrobia rufipes (Fabricius), were the most tolerant life stages when treated with either phosphine or methyl bromide for 48 h exposure at 23°C, whereas eggs of the mold mite, Tyrophagus putrescentiae (Schrank), were slightly more tolerant than mobile stages for both compounds. Under laboratory conditions, complete control was achieved for the both species with concentrations of 0.85 and 4.0 g/m3 of phosphine and methyl bromide, respectively, at 48 h exposure. The results give new information for judicious use of the existing stocks of methyl bromide, whether for pest mitigation or to help in developing a quarantine treatment schedule with that gas. Phosphine shows good potential as an effective alternative to methyl bromide, but if it was to be adopted as a fumigant in the dry-cured ham industry, methods to prevent metal corrosion would need to be designed and effectively implemented.

scholarly journals First record of Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) in soybean plants under no tillage in Minas Gerais, Brazil

2007 ◽  
Vol 37 (3) ◽  
pp. 876-877 ◽  
Author(s):  
Charles Martins de Oliveira ◽  
Denise Návia ◽  
Marina Regina Frizzas
Keyword(s):  
First Record ◽  
Mite Species ◽  
Minas Gerais ◽  
Stored Products ◽  
No Tillage ◽  
Tyrophagus Putrescentiae ◽  
Glycine Max L ◽  
Veterinary Importance ◽  
Commercial Crop ◽  
Soybean Plants

Tyrophagus putrescentiae (Schrank) is a mite species of economic and medical-veterinary importance, usually found associated with stored products. Presence of this mite was observed in the stems of soybean [Glycine max (L.) Merr.] plants originated from a under non tillage commercial crop in 2003/2004, in the municipal district of Unaí, State of Minas Gerais, Brazil. This is the first record of T. putrescentiae occurring in soybean plants under field conditions in the world.

scholarly journals The retention of methallyl chloride and methyl bromide by fumigated grain

1948 ◽  
Vol 46 (4) ◽  
pp. 431-433 ◽  
Author(s):  
N. van Tiel
Keyword(s):  
Methyl Bromide ◽  
Stored Products

The use of fumigants against insects attacking stored products involves two possible dangers. In the first place workers may be poisoned by inhaling the fumigant either during its use or its manufacture. Secondly the fumigant may be adsorbed onto food-stuffs thereby hazarding the health of consumers.

scholarly journals The toxicity of methallyl chloride and methyl bromide towards white rats

1948 ◽  
Vol 46 (2) ◽  
pp. 217-221 ◽  
Author(s):  
N. van Tiel
Keyword(s):  
Methyl Bromide ◽  
Stored Products ◽  
White Rats ◽  
Preparatory Period

Gaseous insecticides, such as methyl bromide and methallyl chloride, are being used on an increasing scale against insects attacking stored products such as grain, tobacco, etc. Their use involves two possible dangers. In the first place, the worker may be poisoned either during the actual gassing operation or during the preparatory period. Secondly, there is the possible danger to consumers through the absorption of these furnigants into the stored product.

Survival of the Oak Wilt Fungus in Logs Fumigated with Sulfuryl Fluoride and Methyl Bromide

2019 ◽  
Vol 69 (1) ◽  
pp. 87-95
Author(s):  
Anna Yang ◽  
Kendhl Seabright ◽  
Jennifer Juzwik ◽  
Scott W. Myers ◽  
Adam Taylor
Keyword(s):  
Methyl Bromide ◽  
Slow Variable ◽  
Current Treatment ◽  
Treatment Schedule ◽  
Level Control ◽  
Oak Wilt ◽  
Sulfuryl Fluoride ◽  
Concentration Time ◽  
Pathogen Colonization ◽  
And Diffusion

Abstract Methyl bromide (MB) fumigation of oak (Quercus sp.) logs destined for export is required to mitigate risks associated with movement of the oak wilt fungus, Bretziella fagacearum. Alternative fumigants with efficacy against B. fagacearum are needed because of MB's ozone-depleting properties. Fumigation with sulfuryl fluoride (SF) is considered a promising substitute. Logs (1.8 m long) were obtained from Quercus trees (18.3 to 29.2 cm diameter at breast height) that were naturally infested (NI) or artificially inoculated (AI) with B. fagacearum to compare pathogen colonization and survival following fumigation with SF and MB. The logs were fumigated with SF for 72 hours with 240, 280, and 320 g/m3 or 96 hours with 128 and 240 g/m3. MB fumigations were conducted using the current treatment schedule for oak logs destined for export (240 g/m3 for 72 h). Frequencies of successful pathogen isolation before treatment were higher for AI logs than for NI logs based on isolation rates from sapwood chips. Treatments greatly reduced frequencies of viable pathogen presence, but no treatment was successful in eradicating the pathogen. Experiments were conducted on blocks (10.2 by 10.2 by 11.4 cm3) obtained from Quercus trees to investigate simulated penetration and diffusion of SF and MB into oak logs. Slow, variable fumigant diffusion never reached concentration–time products lethal to B. fagacearum. Based on these results, reliance on SF alone as a quarantine measure may require higher concentration × time products to achieve quarantine level control of the oak wilt fungus in logs.

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