Cowpea stored on smallholders’ farms suffers serious losses to insect pests. A study conducted in Niger compared five postharvest technologies marketed in sub-Saharan Africa to protect stored grain. Naturally-infested cowpea stored for eight months showed adult Callosobruchus maculatus (F.) mortality of 97% to 100% in the hermetic bags (PICS^TM, SuperGrainbag^TM, AgroZ^®, EVAL™, and ZeroFly^® bags). There was no change in grain damage and weight loss of cowpea stored in hermetic bags. There was, however, a loss of up to 10 to 16% in germination when the grain was stored in hermetic bags. Results observed for grain stored in ZeroFly^® bags impregnated with deltamethrin were substantial and similar to those in control woven bags. In both ZeroFly^® and woven bags, (1) adult C. maculatus population augmented by 35.7% and 78.6%, (2) increased weight losses of 27.3% and 25.2%, and (3) reduced germination of 37.0% and 28.8%, respectively. After opening the bags, abrasions were noted on the liners of hermetic bags, potential damage that could limit their reuse if they only have a single liner. Smallholder farmers in the Sahel can safely store their cowpea in all the hermetic bags tested. However, further research is needed to mitigate insect damage on liners of hermetic bags to improve their performance and reusability.

中文翻译：

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尼日尔萨赫勒地区of豆贮藏技术的比较研究

储存在小农户农场中的pea豆遭受害虫的严重损失。在尼日尔进行的一项研究比较了撒哈拉以南非洲市场上用于保护储存谷物的五种收获后技术。自然侵染的豇豆存储八个月表明成人纹豆象的97％（F）的死亡率为100％，在密闭袋（PICS ^TM，SuperGrainbag ^TM，AgroZ ^®，EVAL™和ZeroFly ^®袋）。密封袋中储存的of豆的谷物损伤和重量减轻没有变化。但是，将谷物储存在密闭袋中时，发芽损失高达10％至16％。结果存储在ZeroFly晶粒观察^®用溴氰菊酯浸渍的袋子非常坚固，与对照编织袋中的袋子相似。在这两种ZeroFly ^®和编织袋，（1）成人豆象人口35.7％和78.6％的增强;（2）增加了27.3％和25.2％的重量损失，和（3）降低了37.0％和28.8％发芽，分别。打开袋子后，发现密封袋的衬里有擦伤，如果只有一个衬里，可能会损坏其重复使用。萨赫勒地区的小农户可以将cow豆安全地存放在所有经过测试的密封袋中。然而，需要进一步的研究来减轻对密封袋衬里的昆虫的损害，以提高其性能和可重复使用性。