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Are insect meals prone to insect infestation during storage? Development of major storage insects on substrates based on Tenebrio molitor larvae meal
Journal of Pest Science ( IF 4.8 ) Pub Date : 2020-04-25 , DOI: 10.1007/s10340-020-01228-4
C. I. Rumbos , M. Rigopoulou , C. G. Athanassiou

Insect meal is a new agricultural commodity that will be produced in huge quantities in the near future and will be treated as all traditional agricultural commodities, i.e., insects will be harvested, processed, transported and stored. As most agricultural commodities, insect meals may be prone to insect infestations during their “post-harvest stages.” However, no information is available at the moment on the susceptibility of insect meals to stored-product insect infestations. The objective of the present study was to evaluate the susceptibility of Tenebrio molitor larvae-meal to insect infestations during storage. Specifically, we investigated the population growth of major stored-product insects, i.e., T. molitor, Tribolium confusum, Alphitobius diaperinus and Trogoderma granarium on T. molitor larvae-meal, as well as on T. molitor meal-based substrates with different percentages of wheat bran (0, 25, 50, 75, 90, 95 and 100%). Our results show that T. molitor and T. confusum can infest 100% T. molitor meal and develop significant populations on this substrate. However, the speed of growth of both species in 100% T. molitor meal was considerably lower compared to the substrates that contained also wheat bran. In contrast, A. diaperinus and T. granarium did not grow at all on 100% T. molitor meal and both exhibited poor growth on the substrate containing 75% insect meal. In general, our results show the susceptibility of T. molitor larvae meal, as well as T. molitor meal-based substrates with different percentages of wheat bran, to infestations by major stored-product insects. To our knowledge, this is the first study on the susceptibility of insect meals to insect infestations.

中文翻译:

储存过程中,昆虫餐粉是否容易受到昆虫侵扰?基于黄粉虫幼虫粉的基质上主要贮藏昆虫的发育

昆虫粉是一种新的农产品,将在不久的将来大量生产,并将被视为所有传统的农产品,即昆虫将被收获,加工,运输和储存。作为大多数农产品,昆虫粉在其“收获后阶段”可能容易受到昆虫的侵扰。但是,目前尚无关于虫粉对储藏产品虫害的敏感性的信息。本研究的目的是评估黄粉虫幼虫粉在储存过程中对昆虫侵染的敏感性。具体来说,我们研究的主要贮存产品的害虫,即人口增长黄粉虫拟谷盗Alphitobius diaperinus斑皮蠹属granarium黄粉虫幼虫餐,以及关于黄粉虫与麦麸(0,25,50,75,90,95和100%)的不同百分比基于膳食基材。我们的结果表明,T。molitorT. confusum可以侵染100%的T. molitor粕,并在此基质上形成大量种群。但是,与也含有麦麸的底物相比,两种物种在100%的黄粉虫粉中的生长速度要低得多。相反,在100%的T. molitor上,尿布曲霉T. granarium根本不生长粉和粉在含有75%昆虫粉的基质上均显示出较差的生长。总的来说,我们的结果表明,易变色粉虱幼虫粉以及小麦糠含量不同的基于异色粉虱粉的基质容易受到主要储藏昆虫的侵染。就我们所知,这是关于昆虫粉对昆虫侵染的敏感性的首次研究。
更新日期:2020-04-25
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