The biology, ecology and management of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae)

Quellhorst, Hannah; Athanassiou, Christos G.; Zhu, Kun Yan; Morrison, William R.

doi:10.1016/j.jspr.2021.101860

Cited by 28 publications

(34 citation statements)

References 186 publications

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“…This is apparent from shifting pest distributions and is likely to become even more frequent. Particular pests to watch in North America include P. truncatus and T. granarium, a species of concern (Quellhorst et al, 2021), and quarantine threat, respectively (Athanassiou et al, 2018). The former resembles R. dominica, while the latter resembles many endemic dermestids, including T. variabile and T. inclusum (Lampiri et al, 2022).…”

Section: Strategies For Adaptation By Food Facilities To Climate Changementioning

confidence: 99%

Pest Management in the Postharvest Agricultural Supply Chain Under Climate Change

Gerken

Morrison

2022

Front. Agron.

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Climate change is a danger to the agricultural system and will impact the availability of food to feed the world. While much attention has focused on the effects of climate change on pest management prior to harvest, much less attention and time has been devoted to determining the effects of climate change on pest management in the postharvest supply chain from farm to fork. Climate change may percolate to pest management at a macro level through compositional changes in which species attack commodities through distributional changes or what commodities are grown in a region (and thus processed in that area). However, climate change may also result in altered microclimates at food facilities, which can be tied to increased generation times, elevated damage and contamination potential, greater abundance of species, and greater need for external inputs. A variety of integrated pest management (IPM) strategies may help increase the resiliency and adaptation of management to climate change. Tactics susceptible to warming temperature changes in climate showing decreased efficacy include semiochemical-based, behaviorally-based tactics, a subset of insecticides (e.g., pyrethrins and pyrethroids), and those that rely on low temperature (e.g., grain aeration, grain chilling). Tactics at food facilities showing resilience to warming temperature changes in climate include packaging, other groups of insecticides, and likely sanitation. Data gaps include predicting changing distributions for stored product insects under climate change, translating macro climate changes into microclimate changes at food facilities, and rigorously investigating how IPM tactic efficacy varies under changing climate. Increased scrutiny of how climate change will affect pest management in the postharvest supply chain will deliver improved outcomes for the entire agricultural system.

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Section: Strategies For Adaptation By Food Facilities To Climate Changementioning

confidence: 99%

Pest Management in the Postharvest Agricultural Supply Chain Under Climate Change

Gerken

Morrison

2022

Front. Agron.

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“…However, their successional attack on the different stages of maize, for example, shows that these two pests may have devastating negative complementary and interactive effects that represent a damage and loss continuum against food systems. Here, we thus interrogate the food systems threats in Africa posed by S. frugiperda and P. truncatus, with special reference to impact on the maize crop cycle to demonstrate how the pest additive interactions through successional damage may exacerbate [39] for distribution time scale) and (B) Prostephanus truncatus in Africa (see [30] for distribution time scale) as of July 2023. Insert (C) shows countries where both pests have been reported (Source: Authors' compilations from various sources).…”

Section: Introductionmentioning

confidence: 99%

The Fall Armyworm and Larger Grain Borer Pest Invasions in Africa: Drivers, Impacts and Implications for Food Systems

Mlambo,

Mubayiwa,

Tarusikirwa

et al. 2024

Biology

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Invasive alien species (IAS) are a major biosecurity threat affecting globalisation and the international trade of agricultural products and natural ecosystems. In recent decades, for example, field crop and postharvest grain insect pests have independently accounted for a significant decline in food quantity and quality. Nevertheless, how their interaction and cumulative effects along the ever-evolving field production to postharvest continuum contribute towards food insecurity remain scant in the literature. To address this within the context of Africa, we focus on the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), and the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), two of the most important field and postharvest IAS, respectively, that have invaded Africa. Both insect pests have shown high invasion success, managing to establish themselves in >50% of the African continent within a decade post-introduction. The successive and summative nature of field and postharvest damage by invasive insect pests on the same crop along its value chain results in exacerbated food losses. This systematic review assesses the drivers, impacts and management of the fall armyworm and larger grain borer and their effects on food systems in Africa. Interrogating these issues is important in early warning systems, holistic management of IAS, maintenance of integral food systems in Africa and the development of effective management strategies.

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“…The insect was thought to have originated from Mexico, Central America, and Northern South America (Hodges et al 1983). Most of the efforts to control P. truncatus have been focused on the use of a wide range of insecticides, with varied results (Golob 2002, Rumbos et al 2013, Quellhorst et al 2021, 2022). However, there are disproportionally few published data on the use of contact insecticides and fumigants for the management of this species, as compared with the vast majority of other major stored product insect species (Quellhorst et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Most of the efforts to control P. truncatus have been focused on the use of a wide range of insecticides, with varied results (Golob 2002, Rumbos et al 2013, Quellhorst et al 2021, 2022). However, there are disproportionally few published data on the use of contact insecticides and fumigants for the management of this species, as compared with the vast majority of other major stored product insect species (Quellhorst et al 2021). After the rapid appearance of P. truncatus in Africa, management of this species was based on the use of active ingredients that were effective for different stored product insect species that were prevalent in those new locations, including the maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), which seems to be the main competitor of P. truncates in this geographical area (Giga and Canhao 1993, Sakka and Athanassiou 2018, Quellhorst et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of deltamethrin and pirimiphos-methyl in proportionally layer-treated maize against the larger grain borer and the maize weevil

Quellhorst

Sakka

Gourgouta

et al. 2023

Journal of Economic Entomology

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Two insecticides (deltamethrin and pirimiphos-methyl) were evaluated in laboratory assays as grain protectants when applied as a total percentage of a maize mass to control adult Prostephanus truncatus and Sitophilus zeamais. All experiments were conducted at the University of Thessaly in Greece at 30°C and 65% RH under continuous darkness. Either insecticide was applied to 20 g of maize placed in a vial or to the upper one half, one fourth, or one-eighth layer of the maize, then insects were either added to the vials before or after the maize in a completely randomized block design CRBD with n = 9 replicates. Mortality, progeny production, and insect damaged kernels (IDK) were then evaluated for each vial. Insect introduction method (before or after) did not have any impact on any of the variables. Mortality was nearly 100% for all treatments for both insecticides for P. truncatus. Subsequently, progeny production and the number of insect damaged kernels were very low or zero for P. truncatus. Mortality of S. zeamais remained low across layer treatments for deltamethrin. However, S. zeamais was easily controlled by pirimiphos-methyl. The results of this laboratory study show that while deltamethrin and pirimiphos-methyl have some effectiveness as a layer treatment on a column of maize, efficacy will be dependent on the target species, and the depth of the treated layer, as well as the location on which the insects are present.

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The biology, ecology and management of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae)

Cited by 28 publications

References 186 publications

Pest Management in the Postharvest Agricultural Supply Chain Under Climate Change

Pest Management in the Postharvest Agricultural Supply Chain Under Climate Change

The Fall Armyworm and Larger Grain Borer Pest Invasions in Africa: Drivers, Impacts and Implications for Food Systems

Efficacy of deltamethrin and pirimiphos-methyl in proportionally layer-treated maize against the larger grain borer and the maize weevil

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