Influences of Stored Product Insect Movements on Integrated Pest Management Decisions

Jian, Fuji

doi:10.3390/insects10040100

Cited by 54 publications

(25 citation statements)

References 131 publications

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“…Insects are attracted to favorable food sources, but also select alternate food sources at the same time (27) . A study by (28) reported the highest rate of progeny production in R. dominica reared on triticale, a hybrid of wheat and rye. The reason why R. dominica preferred wheat grain is that wheat contains nutrients needed for the normal growth, development, reproduction and fitness of the beetle.…”

Section: Discussionmentioning

confidence: 99%

Feeding preference and reproductive fitness of Rhyzopertha dominica (Fabricius, 1792) in a choice-based feed paradigm

Sheeba¹,

Bai²

2021

IJST

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Objective: This study is designed to understand the feeding preference of R. dominica, when three grains and their flours are provided in a choice-paradigm, constructed in the form of a poly vinyl chloride tunnel, in which feed materials are made available at random. Methods and Analysis: A total of 200 beetles were released into the choice-paradigm, and the number of beetles in each feed was counted once in every 24 h. When the beetles in the choice chamber were enumerated after 96 h, 26 percent of the released beetles were found in wheat grain; 25% in wheat flour; 12 in rice; 11 in chick pea; 10 in rice and chick pea flours and 6% in the outer tunnel without opting for any feed. On the basis of the feed on which R. dominica were reared, changes were observed in selected key biological characteristics. Findings: The research findings showed that wheat and wheat flour were preferred against rice, chick-pea and their flours. The incubation period increased significantly (51%) when reared in chick pea flour. In beetles reared on this feed, total larval period increased by 39%, pupal period by 31% and total developmental period by 39%. The fecundity decreased by 11%, whereas, male and female longevities respectively by 20% and 24%. Egg hatching was not much affected by the type of feed. Hatchability was 92% for wheat flour and 97% for rice and chick pea grains. Novelty: R. dominica, a primary pest of stored wheat, seemed to possess the evolutionary plasticity to survive in a variety of feed materials when the primary diet is not available.

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Section: Discussionmentioning

confidence: 99%

Feeding preference and reproductive fitness of Rhyzopertha dominica (Fabricius, 1792) in a choice-based feed paradigm

Sheeba¹,

Bai²

2021

IJST

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“…The percentage of adult mortality was calculated by counting the number of dead weevils and number of introducing weevils. Based on Jian’s 17 method, the weevils mortality can be calculated by the following equation:…”

Section: Methodsmentioning

confidence: 99%

Insecticidal activity ofLantana camaraextract oil on controlling maize grain weevils

Ayalew

2020

Toxicology Research and Application

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Postharvest losses are known to be one of the serious constraints upon food security among farmers poor resource in Africa. The use of botanical insecticide in pest management during storage against weevils is often encouraged because synthetic insecticides produce multiple side effects on human and environment. In this study, the insecticidal property of methanol, ethanol, and ethyl acetate extracts of Lantana camara leaf oil and powder for controlling maize weevils, Sitophilus zeamais, was studied. Gas chromatography–mass spectrometry and Fourier transform infrared spectroscopy (FTIR) were used to identify the chemical composition and functional group of solvent extract, respectively. Adult weevil repellency and mortality were studied by the effect of oil concentration at 0% (w/w), 2% (w/w), 3% (w/w), 5% (w/w), 7% (w/w), and 10% (w/w). Repellency effect was also conducted at 6, 12, and 24 h. The number of weevil death increased significantly as exposed time was increased. The extracted oil by the three-solvent fraction had direct repellent and toxic effect to the weevil. From all treatment applied, extracted by methanol fraction had showed highest percentage mortality (74%). The lowest mortality rate was observed in ethyl acetate extract (26%) at 2% (w/w) concentration. The effect of leaf powder and extracted oil on repellency and mortality for insects was due to the presence of bioactive and phytochemical molecules such as Phytol, Pyrroline, Paromomycin, Pyrrolizin, and 1-Eicosano. It was concluded that both L. camara leaf powder and extract oil can be used for the protection of stored maize from infestation S. zeamais.

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“…With these abundant stimuli permeating the space around a food facility, it is still unknown from how far insects will be attracted to a location, or how frequently they are, but it is quite clear that some species disperse on the order of multiple to many kilometers, 100 and likely frequently 101 . While recent research has shown that walking insects can only respond to attractants from within a very short distance, 102 it is expected this may be farther for insects orienting while flying during long‐range dispersal 79 . In addition, surrounding a food facility, there may also be hosts or field crop production in the environment that emit attractive volatiles and act as refugia for dispersing insects (Fig.…”

Section: Potential Concerns About Use Of Attractants and Their Mitigation At Food Facilitiesmentioning

confidence: 99%

Towards developing areawide semiochemical‐mediated, behaviorally‐based integrated pest management programs for stored product insects

Morrison

Scully

Campbell

2021

Pest Management Science

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With less emphasis on fumigation after harvest, due to the phase‐out of methyl bromide and increasing phosphine resistance, diversified postharvest integrated pest management (IPM) programs are needed. Here, we synthesize knowledge on semiochemical‐mediated, behaviorally‐based tactics, wherein semiochemicals are deployed to manipulate pest behavior to protect commodities. We note that beyond monitoring, commercial use is limited to mating disruption targeting mostly moths. In total, behaviorally‐based tactics have been attempted for eight species of stored product insects from two orders and six families. Eighteen challenges were identified that may have prevented robust implementation of semiochemicals for behaviorally‐based management in stored products, including direct competition with ubiquitous food cues, and the diverse insect assemblages that colonize food facilities. Further, we discuss the scientific data and methods required to support stakeholder acceptance of semiochemicals at food facilities, including demonstrating that pests are not attracted from the landscape and minimal spillover around pheromones. We sketch a robust areawide behaviorally‐based IPM program after harvest, and clarify properties for improving semiochemicals, including incorporating those that are broad spectrum, competitive with food cues, potent at low concentration, and exhibit dose‐dependent attraction. The research gaps and testable hypotheses described here will speed developing behaviorally‐based tactics at food facilities. © 2021 Society of Chemical Industry

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Influences of Stored Product Insect Movements on Integrated Pest Management Decisions

Cited by 54 publications

References 131 publications

Feeding preference and reproductive fitness of Rhyzopertha dominica (Fabricius, 1792) in a choice-based feed paradigm

Feeding preference and reproductive fitness of Rhyzopertha dominica (Fabricius, 1792) in a choice-based feed paradigm

Insecticidal activity ofLantana camaraextract oil on controlling maize grain weevils

Towards developing areawide semiochemical‐mediated, behaviorally‐based integrated pest management programs for stored product insects

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