Effect and Control of Insects, Molds and Rodents Affecting Corn Quality

Mason, Linda J.

doi:10.1016/b978-0-12-811971-6.00008-5

Cited by 6 publications

(6 citation statements)

References 104 publications

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“…However, determination of insect behavioral response is quite complicated with varying storage conditions and changing biotic and abiotic factors. The movement and distribution of stored product insects are affected by various biotic and abiotic factors and interactions among the factors ( Mason 2019 ). Factors mainly affecting insect movement and distribution are temperature, moisture, and carbon dioxide and their gradients, grain type, dockage, broken kernels, grain mass, insect density, age, life stage and sex, chemical compounds, fumigants, and species–species interactions ( Anukiruthika et al 2021 ).…”

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confidence: 99%

Movement and Distribution of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) Adults Under Different Temperature Differences in Different Lengths of Horizontal Grain Columns

Anukiruthika

Jayas

Jian

2022

Journal of Insect Science

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Understanding insect movement and distribution is critical for developing an effective insect pest management protocol. Movement and distribution of adult Cryptolestes ferrugineus (Stephens) in response to nominal temperature differences of 5, 10, 15, and 20°C in 1- and 2-m horizontal columns filled with 12.5% moisture content wheat were studied in 24, 48, and 72 h of movement times. In the wheat columns without temperature differences, adults had a diffusion distribution pattern caused by their random movement. Adults showed bias movement to the warmer grain in wheat columns with temperature differences and preferred the warmer grain regardless of the magnitude of temperature differences in less than 24 h. Their distribution did not have significant differences among different movement times in 1- or 2-m columns. About 40% of adults moved to the warmer wheat located at 0.4 to 0.5 m in the 1 m column but did not move to the warmer wheat located at 0.9 to 1 m in the 2-m column. Therefore, length of grain column influenced detection of warmer grain by insects. Adults under different temperatures had a similar response as that under linear temperature gradients.

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Movement and Distribution of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) Adults Under Different Temperature Differences in Different Lengths of Horizontal Grain Columns

Anukiruthika

Jayas

Jian

2022

Journal of Insect Science

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“…According to Akoun et al 21 , this combination would effectively inhibit hydrolysis and oxidation of grain fatty acids during storage. Because, the principle of triple bagging is based on controlled and modified atmospheres which promote atmospheric conditions lethal for insects 37,38 . While the leaves of Lippia multiflora and Hyptis suaveolens are rich in volatile compounds which are the source of their insecticidal, bactericidal and fungicidal powers 39,40,41 .…”

Section: Discussionmentioning

confidence: 99%

Fatty Acid Profiles of Oil Obtained from Corn Kernels (Zea Mays L.) Preserved by a Triple Bagging System and Aromatic Plants (Lippia multiflora and Hyptis suaveolens)

Akoun

Chatigre

Fofana³

2022

Biosci., Biotech. Res. Asia

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Corn oil is considered one of the best edible vegetable oils. Unfortunately, the storage of corn kernels as practiced in rural areas affects the quality of the fat. However, the triple bagging system and aromatic plants remain alternatives to the poor storage practiced by certain players in the ivorian maize sector. However, their influence on the quality of the fat in the grains remains to be elucidated. This study aims to evaluate, during storage, the fatty acid (FA) profile of the oil obtained from corn kernels packaged in a triple bagging system with or without the leaves of Lippia multiflora and Hyptis suaveolens. Thus, 6 batches including one control in polypropylene bag, one batch in triple bagging without biopesticides and four batches in triple bagging with variable proportions and/or combination of Lippia multiflora and Hyptis suaveolens (2.5 % and 5 % and a combination 0 to 100 % Lippia) were made up to follow the evolution of the fatty acid (FA) composition of the extracted oils during six observation periods (0 ; 1 ; 4.5 ; 9.5 ; 14.5 and 18 months). The estimated intake and fatty acid contribution were also evaluated after 18 months of storage. The storage time and the type of packaging have a significant influence on the fatty acid profile of oils. During grain storage, the FA profile of the oils obtained from the grains stored in the triple bagging with the biopesticides varied very little. At the end of storage, their average composition was 13.40 % saturated fatty acids (SFA), 31.76 % monounsaturated fatty acids (MUFA) and 50.45 % polyunsaturated fatty acids (PUFA). On the other hand, at the end of grain storage, the grain oil from the triple bagged batch without biopesticides consists of 16 % SFA, 38.85 % MUFA, and 45.70 % PUFA. The contribution to meeting energy needs is ensured from the consumption of oil from grains stored for 18 months in triple bagging systems associated with biopesticides. Therefore the combination of these aromatic leaves with triple bagging is more advantageous to preserve the FA profile of the grains during storage.

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“…Bean grains storage is a complicated ecosystem consisting of numerous interactions among the biotic and abiotic factors (Wong-Corral et al, 2013, Thangarasu et al, 2021. The responsible criteria affecting the pest population dynamics in the atmosphere of the storage structure are gaseous concentrations, moisture level, temperature status, broken grain particles, and relative humidity (Mason, 2019;Thangarasu et al, 2021) as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Based Modified Atmosphere Technique for Controlling Pulse Beetle, Callosobruchus maculatus (F) in Stored White Beans

Morsy

2021

Journal of Plant Protection and Pathology

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Bruchid beetle (Callosobruchus maculatus) is a dangerous pest in stored legumes environment. The present study aimed at assessing the effectiveness of the nitrogen-based modified atmosphere method for combating the bruchid beetle in the managed ecosystem. Besides the control treatment, five laboratory treatments and their replicates were conducted at controlled climatic conditions in 2019 in Egypt. The different oxygen gas concentrations of 2, 5, 8, 11, 14, and 21% O2 were mixed with 98, 95, 92, 89, 86, 79% N2 to form different gas mixtures for the fifth, fourth, third, second, first, and control treatments, respectively, at different exposure times of three, five, and seven days. The adult and egg mortalities were enlarged either by decreasing the concentration of oxygen or by extending the exposure period. The number of newly emerged adults was nearly similar at all the exposure times for all treatments registering no significance of adult emergence variations. The treated stored grains in the fifth treatment achieved 100% egg mortality after seven days of exposure. Seven days of exposure at the rate of 2% O2 were unfavorable conditions for insect growth achieving 100% mortality for the developmental stages of C. maculatus. The lethal concentrations of gases were 2% O2 and 98% N2 at seven days of exposure. The adapted atmospheres of the managed ecosystem with high nitrogen and low oxygen are environmentally friendly insect management techniques for controlling bruchid beetle in stored grains. This research may offer insights for operative stored insect management without any harm to the environment.

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Effect and Control of Insects, Molds and Rodents Affecting Corn Quality

Cited by 6 publications

References 104 publications

Movement and Distribution of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) Adults Under Different Temperature Differences in Different Lengths of Horizontal Grain Columns

Movement and Distribution of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) Adults Under Different Temperature Differences in Different Lengths of Horizontal Grain Columns

Fatty Acid Profiles of Oil Obtained from Corn Kernels (Zea Mays L.) Preserved by a Triple Bagging System and Aromatic Plants (Lippia multiflora and Hyptis suaveolens)

Nitrogen-Based Modified Atmosphere Technique for Controlling Pulse Beetle, Callosobruchus maculatus (F) in Stored White Beans

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