5,370 Works

Food industry practices affecting integrated pest management

Pasquale Trematerra & Francis Fleurat-Lessard
Manufacturers of dry food products have a real challenge to exclude pests everywhere along the food chain because of the rather complex and different environments of food industry buildings. Current practices that influence pest presence and development in food industry facilities have been identified in the stages of food plant design, food ingredient reception and storage, processing or conditioning of finished food, and marketing. The preventive pest control measures in the food industry may be...

Technical and economic evaluation of ambient and chilled aeration strategies to maintain the quality of paddy rice during storage in a tropical climate

Alejandro Morales-Quiros, Carlos Campabadal, John Lawrence, Benjamin Plumier & Dirk E. Maier
Warm and moist conditions of some tropical climate regions make it difficult to use ambient aeration to cool stored grain, which contributes to pest problems and increases dependence on chemical control as part of grain management strategies. Grain chilling is a non-chemical alternative to cool grain stored under high risk climatic conditions. The objective of this research was to use computer simulation to evaluate the technical and economic viability of using grain chilling compared to...

Application of transverse ventilation in grain storage in China

Tianyu Shi, Fujun Li, Lei Wei, Yang Cao, QianQian Li, Xiangkun Zhu & Yongyi Zhang
Julius-Kühn-Archiv, Nr. 463 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018

Bin coring: a simple practice for improving aeration performance and saving energy

Leandro Cardoso, Diego De La Torre & Ricardo Bartosik
The coring operation consists of removing the center portion of the grain mass, or core of the silosilo, to improve airflow distribution. Additional benefit of this practice is the elimination of a significant portion of the fine material, which is a source of fungal inoculum and feed for insects. The effect of coring on airflow distribution through a grain mass has been previously addressed, but the effect on energy savings was not fully quantified. Thus,...

In search of a new attractant for monitoring Stegobium paniceum L. (Coleoptera: Anobiidae)

Salvatore Guarino, Stefano Colazza, Ezio Peri, Maurizio Sajeva, Giuseppe Bragherie, Nadia Zini, Marco Caimi & Pietro Zito
Stegobium paniceum (L.) is a major pest for several stored products worldwide. Monitoring methods for this species, based on pheromone traps, are affected by the complexity and expensiveness of the chemical synthesis of the pheromone isomer [(2S,3R,1’R)-Stegobinone] and/or by its lost of efficacy after two weeks at room temperature. So other semiochemicals that can be exploited for monitoring this species are highly desirable. In this study was tested the behavioral response in two-choice olfactometer of...

Detection and estimation of population density of bean weevils (Coleoptera: Bruchidae) in stored pulses via bioacoustic analysis

Panagiotis A. Eliopoulos & Illyas Potamitis
Stored product insects, produce acoustic emissions by moving, feeding or ovipositing inside the grain mass. These sounds can be used not only for detection purposes, but also for population density estimation. Acoustic emissions of adults of Acanthoscelides obtectus (Coleoptera: Bruchidae) and Callosobruchus maculatus (Coleoptera: Chrysomelidae) were recorded infesting various pulses in varying population densities from 1 to 500 adults/kg product. The acoustic analysis system is being described. Population density, type of grain and pest species...

Insects and fungi in stored maize in Angola

Laurinda Paim, Graça Barros, Ana Magro, Elsa Borges Da Silva, António Mexia & Arlindo Lima
In underdeveloped countries in Asia and Africa, non-effective post-harvest technologies and sometimes ideal environmental conditions for development of pests like insects, fungi, rodents and birds, can lead to damage of both raw or processed foods. Losses can achieve considerable proportions in dried vegetables used as food products, particularly in underdeveloped countries where food security problems are a daily basis routine. The major goal of the present study was the identification of insects and fungi associated...

Comparison of mandible morphology of two stored product bostrichid beetles, Rhyzopertha dominica and Prostephanus truncatus

Tomas Vendl, Radek Aulicky & Vaclav Stejskal
Insect mandibles are most frequently encountered fragments in processed foods. Thanks to their sclerotised and darkly pigmented nature, they usually remain intact in foods and are relatively easily detectable. Moreover, because of their complexity and variety of shapes, stored product beetle mandibles may be useful in species determination. The present work deals with a comparative morphology of two stored product bostrichid beetles, Rhyzopertha dominica and Prostephanus truncatus. The mandibles were studied using by light and...

Susceptibility of dried berries to infestation by Plodia interpunctella (Lepidoptera: Pyralidae) in correlation with total sugar content

Filip Vukajlović, Dragana Predojević, Snežana Tanasković, Kristina Miljković, Sonja Gvozdenac, Vesna Perišić & Snežana Pešić
By assessing the degree of resistance of stored products to infestation by insect pests and correlating it with physical, chemical and nutritional characteristics of products, we could gain a real insight in these pests feeding preferences, and consequently in their biology and ecology. The aim of this study was to assess the degree of resistance of five dried berry species (strawberry, raspberry, blackberry, black chokeberry and cranberry) to infestation caused by the major pest of...

Unusual cases of product contamination by 'wandering' larvae of the Indian meal moth, Plodia interpunctella (Lepidoptera: Pyralidae)

Stanislaw Ignatowicz
Upon hatching, the larvae of the Indian meal moth (IMM), Plodia interpunctella, disperse vigorously. Within a few hours, they establish themselves on the crevices of food or enter packaged product through small openings and cracks. When on food the larvae intensively feed in or near a tunnel-like case made of frass and silk they web together. The number of larval instars varies from five to seven, depending on temperature, humidity and available food quality. Most...

Circadian rhythm of Liposcelis entomophila and Liposcelis paeta in paddy warehouse

Zhenjun Zhang, Yanyu Li, Zhongming Wang, Yang Cao, Yanmei Qi, Derong Pan & Rui He
Booklice is a small but serious stored grain pest, and understanding the circadian rhythm of booklice help to control. In this study, circadian activity of booklice were monitored with sticky traps in the grain bulk surfaces of two warehouses stored paddy rice in two different provinces in China. The results showed that the species of booklice were different and were Liposcelis entomophila, and Liposcelisp paeta for Nanning’s and Zhanjiang’s warehouses respectively. In term of L.entomophila,...

Evaluation of the difference in the development of stored insect pests on organic litter

Francesca Lampugnani, Guglielmo Cassani & Dario Zanoni
On July 2017 in a warehouse of pet food shop in Italy an infestation of Oryzaephilus surinamensis was found on a pallet of organic litter, near an infested pallet of dog’s pasta. In order to investigate the origin of the infestation, and to support the risk assessment by the pest control operator, one test was conducted at Agroblu Laboratory of Applied Entomology (LEAA) to observe the feasibility of development of O. surinamensis, Plodia interpunctella and...

Larvae of Trogoderma respond behaviorally to whole body extracts

Michael J. Domingue, Scott W. Myers & Thomas W. Phillips
Behavioral responses to semiochemicals by Trogoderma (Coleoptera: Dermestidae) stored product pests were assayed in a small arena. Hexane extracts were obtained from Khapra beetle, Trogoderma granarium, warehouse beetle, Trogoderma variable, and the larger cabinet beetle Trogoderma inclusum that were killed by being frozen for 48 hours at -20° C. These extracts were analyzed using gas chromatography coupled with mass spectrometry (GC/MS), and it was confirmed that they contain several cuticular hydrocarbons, fatty acids and sterols....

DNA barcode of stored-product Pests based on Mitochondrial Cytochrome Oxidase I Gene

Yi Wu, Zhihong Li, Fujun Li, Václav Stejskal, Dan Zheng, Xin Chen & Yang Cao
The stored-product pests are economically important that can be spread through grain trade. Most storedproduct pests, including eggs, nymphs, and adults, are very small and difficult to identify morphologically. Also the classification and identification of them have always been hindered by the overwhelming number of species, widely distribution. Here, we collected 43 stored-product pests from 46 geographical locations in China and other countries. The mtDNA COI gene sequences were sequenced. Software MEGA 5 was used...

Bioefficacy of Cameroonian Hemizygia welwitschii Rolfe-Ashby (Lamiaceae) leaf powder against Callosobruchus maculatus Fabricius in stored cowpeas seeds

Gabriel Fotso Tagne, Elias Nukenine Nchiwan & Cornel Adler
Julius-Kühn-Archiv, Nr. 463 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018

Postharvest losses of agricultural commodities in Trincomalee, Sri Lanka

Dissanayaka Mudiyanselage Saman Kumara Dissanayaka, Abeysinghe Mudiyanselage Prabodha Sammani, Leanage Kanaka Wolly Wijayaratne, Poorna Maheshika Samaranayaka, Lakshan Madusanka Karunarathna, Niwanthi Chandima, Ishara Maduwanthi Wijerathna, Sanjeewa Harshana, Anupama Heshani & Diluka Kalhari
In Sri Lanka, postharvest losses vary with the geographical area; higher losses are reported in warmer areas. A survey was conducted in Trincomalee district, one of the hottest areas in Sri Lanka, to ascertain the status of crop cultivation and postharvest losses of cultivated crops. Farming is the main livelihood of the people in the area. The main crops cultivated are paddy, red onion, chili, brinjal, tobacco and manioc; the average land extent possessed by...

Stored Grain Protection: cases studies in Portugal

Maria Otilia Carvalho, Ana Filipa Cambeiro, Patricia Fradinho, Ana Magro, Bárbara Teixeira, Rogério Mendes & Miguel Pedro Mourato
Considering the edibility of insects’ species associated with storage ecosystem, chemical control methods can be easily replaced by environmental and economically sustainable alternatives. Use of biogenerated atmospheres is an inexpensive method that tolerates insect presence. In Portugal, during one year, hermetic bags were used to store paddy under 65-75-85% relative humidity (RH) and 14-17-24ºC temperatures. Brown rice infested with Sitophilus zeamais adults was placed inside the hermetic bags. Biogenerated atmosphere was naturally produced inside the...

Low-cost instrument to measure equilibrium moisture content of bagged and bulked grain

Paul R. Armstrong, Samuel G. McNeill, Bhadriraju Subramanyam, Joseph O. Akowuha, James Danso Kofi, Naomi Manu, Enoch A. Osekre, George Opit, Frank H. Arthur & James F. Campbell
Julius-Kühn-Archiv, Nr. 463 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018

On farm grain storage – potential opportunity or risk- meeting the demands of food safety and quality, an Australian perspective

Peter Botta & Judy Bellati
Traceability, product identity, food safety and quality assurance are increasingly required by end users and customers. The Australian on farm storage system has a unique opportunity to deliver grain to meet these requirements, provided the system is set up and managed to ensure the end product meets the market requirement. Australian grain growers are becoming more aware of the changing nature of markets and their requirements, and the importance of managing storage to meet food...

Counting losses to cut losses: quantifying legume postharvest losses to help achieve food and nutrition security

Tanya Stathers, Kukom Edoh Ognakossan, Jan Priebe, Brighton M. Mvumi & Bruno M. D. Tran
Projections suggest that by 2050 global food production will need to have increased by 70% to meet food demands associated with the world’s population growth. Such forecasts, alongside growing awareness of the socio-ecological costs of food loss, and political ramifications of food crises have seen postharvest loss (PHL) reduction reappearing as a development priority. Particularly so in sub-Saharan Africa, a region deemed highly vulnerable to the impacts of climate change, where 307 million people are...

Novel report of the phytochemical composition from Fraxinus excelsior pollen grains

Maryam Sharif Shoushtari, Ahmad Majd, Taher Nejadsattari, Mostafa Moin & Gholam Ali Kardar
In this research, we investigated the phytochemical profiles for two models of aqueous (Aq) and methanolic (Me) pollen extracts of F. excelsior from three pollination periods from hermaphrodite flowers (H) of polygamous and male flowers of pure male (M) in order to identify their constituent compounds. Pollens of both phenotypes H and M were collected during three pollination periods and were analyzed by light and scanning electron microscopy (LM/SEM). The total phenolic content (TPC) and...

IPM guidelines as fundament for sustainability in plant protection: The case for stored product protection

Bernd Hommel & Nadine Feuerbach
Julius-Kühn-Archiv, Nr. 463 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018

Vergleichende Transkriptomanalysen des Cydia pomonella granulovirus (CpGV) in sensiblen und resistenten Apfelwicklern (Cydia pomonella)

Diana Pietruska
Baculoviren sind eine Gruppe insektenpathogener Viren, deren Wirtskreis Larven der Ordnungen der Lepidoptera, Hymenoptera und Diptera umfassen. Durch ihre hohe Wirtsspezifität eigenen sie sich als biologische Insektizide und stellen eine Alternative zu chemischen Pflanzenschutzmitteln dar. Das Cydia pomonella granulovirus (CpGV) ist ein wirtschaftlich bedeutendes Baculovirus, das im Obstanbau gegen den Apfelwickler (AW) Cydia pomonella eingesetzt wird. Im Jahr 2005 wurde erstmals eine Resistenz des Apfelwicklers gegen das Isolat CpGV-M, auf dem die meisten kommerziellen CpGV-Präparate...

Trial Report – Closed Transfer Systems (CTS)

Matthias Kemmerling, Jens Karl Wegener, Dirk Rautmann, Jan-Philip Pohl, Eckhard Immenroth & Dieter Von Hörsten
The measuring method used to measure operator exposure during the filling process has been significantly improved by several innovative measures, such as a better washing program with less water, the operation of the washing machine with demineralized water, the use of stainless steel sieves for sample preparation and new overalls. In particular, during the test period, valuable experience was gained with the correct textile composition, the correct storage of the contaminated dosimeters and the evaluation...

Sortenabhängige Variabilität von sekundären Pflanzenstoffegehalt im Quendel (Thymus serpyllum L.)

Elena Malankina, Elena Tkatschova & Lamara Kozlovskaja
Die Qualität der Arzneipflanzen wird durch den Inhalt der pharmakologisch signifikanten Verbindungen bestimmt. Einige Arten der Arzneipflanzen haben eine relativ stabile chemische Zusammensetzung und einige wie z.B. Quendel (Thymus serpyllum L.), sind für ihre starke chemische Diversität bekannt. Das ätherische Öl von Quendel variiert stark innerhalb der Akzession. Derzeit sammelt man Quendel in der Natur in Russland und das stellt die Frage nach Identität, Qualität und Homogenität der pflanzlichen Rohstoffe. Heutzutage gibt es viele Sorten,...

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