Efficacy of phosphine and insect penetration ability in ZeroFly® bags

Otitodun, Grace O.; Ogundare, Moses O.; Ajao, Shekinat K.; Nwaubani, Samuel I.; Abel, Grace I.; Opit, George P.; Bingham, Georgina; Omobowale, M. O.

doi:10.1016/j.jspr.2019.04.006

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…In addition to binary sprays and dusts, insecticide-impregnated, -treated, or -coated hermetic bags have shown satisfactory performance as safe methods for commodity storage in developing countries [ 30 , 192 ]. One type of triple bag was shown to be usable not only for safe storage but also for effective phosphine fumigation [ 197 ]. There is also considerable potential for these methods in the packaging of various types of durable food [ 286 ].…”

Section: Discussionmentioning

confidence: 99%

“…A drawback of hermetic bags is that the larger grain borer Prostephanus truncatus (Horn) (Bostrichidae) [ 195 ], R. dominica [ 196 ], and rodents [ 194 ] can perforate the plastic liner of some types of bags, which increases the oxygen levels and negatively affects the efficacy of the method. In contrary, Otitodun et al [ 197 ] claimed that the ZeroFly ® bags were not easily penetrated by stored-product insect pests under field conditions.…”

Section: Gas and Vapor Insecticide Application Formulationsmentioning

confidence: 99%

See 1 more Smart Citation

Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control

Stejskal

Vendl

Aulický

et al. 2021

Insects

113

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The selective application of insecticides is one of the cornerstones of integrated pest management (IPM) and management strategies for pest resistance to insecticides. The present work provides a comprehensive overview of the traditional and new methods for the application of gas, liquid, gel, and solid physical insecticide formulations to control stored-product and food industry urban pests from the taxa Acarina, Blattodea, Coleoptera, Diptera, Hymenoptera, Lepidoptera, Psocoptera, and Zygentoma. Various definitions and concepts historically and currently used for various pesticide application formulations and methods are also described. This review demonstrates that new technological advances have sparked renewed research interest in the optimization of conventional methods such as insecticide aerosols, sprays, fumigants, and inert gases. Insect growth regulators/disruptors (IGRs/IGDs) are increasingly employed in baits, aerosols, residual treatments, and as spray-residual protectants for long-term stored-grain protection. Insecticide-impregnated hypoxic multilayer bags have been proven to be one of the most promising low-cost and safe methods for hermetic grain storage in developing countries. Insecticide-impregnated netting and food baits were originally developed for the control of urban/medical pests and have been recognized as an innovative technology for the protection of stored commodities. New biodegradable acaricide gel coatings and nets have been suggested for the protection of ham meat. Tablets and satchels represent a new approach for the application of botanicals. Many emerging technologies can be found in the form of impregnated protective packaging (insect growth regulators/disruptors (IGRs/IGDs), natural repellents), pheromone-based attracticides, electrostatic dust or sprays, nanoparticles, edible artificial sweeteners, hydrogels, inert baits with synthetic attractants, biodegradable encapsulations of active ingredients, and cyanogenic protective grain coatings. Smart pest control technologies based on RNA-based gene silencing compounds incorporated into food baits stand at the forefront of current strategic research. Inert gases and dust (diatomaceous earth) are positive examples of alternatives to synthetic pesticide products, for which methods of application and their integration with other methods have been proposed and implemented in practice. Although many promising laboratory studies have been conducted on the biological activity of natural botanical insecticides, published studies demonstrating their effective industrial field usage in grain stores and food production facilities are scarce. This review shows that the current problems associated with the application of some natural botanical insecticides (e.g., sorption, stability, field efficacy, and smell) to some extent echo problems that were frequently encountered and addressed almost 100 years ago during the transition from ancient to modern classical chemical pest control methods.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Gas and Vapor Insecticide Application Formulationsmentioning

confidence: 99%

Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control

Stejskal

Vendl

Aulický

et al. 2021

Insects

113

View full text Add to dashboard Cite

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“…In relation to the Control treatment, insect population levels found were low to moderate and this was most likely due to the fact that maize used was well fumigated (nearly insect-free) before the study commenced and was of relatively low initial grain moisture (9.1% MC) [9]. Rapid stored grain insect pest population growth typically occurs in environmental conditions that exist in Nigeria [31]. Densities of insects such as Sitophilus zeamais, Cryptolestes ferrugineus, Tribolium castaneum and Liposcelis spp.…”

Section: Resultsmentioning

confidence: 96%

“…The maize used in this study had been fumigated well and had relatively low initial grain moisture content (MC) (9.1%); these two factors likely slowed down insect population growth of the several species that were found [9]. All treatments were without insects until 3 months into storage (May) when they were detected; insect numbers in the Control were not as high as would be typically found in ordinary polypropylene bags of untreated maize in storehouses in Nigeria during the June to September period [9,31]. Nutrient content of infested stored grain depends upon the grain type, the type of insect pest and the level of infestation [1].…”

Section: Resultsmentioning

confidence: 99%

Assessing efficacies of insect pest management methods to preserve nutritional composition of bagged maize in storehouses located in markets in Nigeria

Otitodun¹,

Ala²,

Nwaubani³

et al. 2021

AJFAND

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Maize needs to be stored using effective and safe postharvest management measures to prevent physical insect damage as well as ensure stability of nutritional quality during storage. In this study, conducted in February–December 2016, insect pest management methods for bagged maize preservation in storehouses located in markets in Nigeria were evaluated for their ability to preserve nutritional quality. Study locations were in three grain markets, namely Eleekara market in Oyo town and Arisekola market in Ibadan, Oyo State, South West Nigeria, and Ago market in Ilorin, Kwara State, North Central Nigeria. Treatments comprised Piper guineense(Botanical), Bularafa diatomaceous earth (DE), permethrin powder(Rambo™) (Permethrin), PICSbags(hermetic)and ZeroFly® bags(non-hermetic). The study also had negative control(Control)comprising untreated maize in polypropylene bags. In general, as a result of insect infestation, protein content increased in all treatments except PICS which had the least infestation. After 11 months of storage, Permethrin and PICS treatments had the lowest insect infestation levels and the highest energy levels. Energy level in the Botanical treatment was also high and similar to levels in Permethrin and PICS treatments most likely due to fats and essential oils in P. guineense being adsorbed and/or absorbed by kernels. Fat content was lower in the Control and DE treatments likely due to the Control having the highest insect infestation and the DE adsorbing and/or absorbing fat from kernels. During storage carbohydrate content decreased in all treatments except the Control. However, even in the Control, there was a clear trend of decrease in carbohydrate content. Because the Control had the highest insect (Sitophilus zeamais) infestation and insect damaged kernels (IDK), this trend in decrease in carbohydrate content may be insect related. Ash content increased in the ZeroFly treatment, was unchanged in Botanical, Control, and PICS treatments, and decreased in DE and Permethrin treatments. Nutritional quality variables in this study were within or close to the known value ranges for maize. Therefore, use of maize that had been fumigated well and had a relatively low initial grain MC (9.1%), in addition to the effects of the treatments most likely slowed down population growth of the several insect species that were found and contributed to preserving nutritional quality. The relatively low insect populations in all treatments, including the Control, during the February–September period probably reduced the clarity of effects of infestation on nutritional composition reported in this study.

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“…Pre-fumigated maize stored in ZeroFly ® storage bags had insect-damaged grain of up 10% after 6 months [ 44 ]. When using ZeroFly ® storage bags, it is recommended that grain first be disinfested (by fumigation or solarization) before storage or fumigated in case an infestation occurs during storage [ 41 , 45 ]. Most smallholder farmers store infested grains and would have challenges disinfesting it.…”

Section: Discussionmentioning

confidence: 99%

Comparative Study of Cowpea Storage Technologies in the Sahel Region of Niger

Bakoye

Baoua

Seyni

et al. 2020

Insects

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Cowpea stored on smallholders’ farms suffers serious losses to insect pests. A study conducted in Niger compared five postharvest technologies marketed in sub-Saharan Africa to protect stored grain. Naturally-infested cowpea stored for eight months showed adult Callosobruchus maculatus (F.) mortality of 97% to 100% in the hermetic bags (PICSTM, SuperGrainbagTM, AgroZ®, EVAL™, and ZeroFly® bags). There was no change in grain damage and weight loss of cowpea stored in hermetic bags. There was, however, a loss of up to 10 to 16% in germination when the grain was stored in hermetic bags. Results observed for grain stored in ZeroFly® bags impregnated with deltamethrin were substantial and similar to those in control woven bags. In both ZeroFly® and woven bags, (1) adult C. maculatus population augmented by 35.7% and 78.6%, (2) increased weight losses of 27.3% and 25.2%, and (3) reduced germination of 37.0% and 28.8%, respectively. After opening the bags, abrasions were noted on the liners of hermetic bags, potential damage that could limit their reuse if they only have a single liner. Smallholder farmers in the Sahel can safely store their cowpea in all the hermetic bags tested. However, further research is needed to mitigate insect damage on liners of hermetic bags to improve their performance and reusability.

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Efficacy of phosphine and insect penetration ability in ZeroFly® bags

Cited by 6 publications

References 12 publications

Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control

Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control

Assessing efficacies of insect pest management methods to preserve nutritional composition of bagged maize in storehouses located in markets in Nigeria

Comparative Study of Cowpea Storage Technologies in the Sahel Region of Niger

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