Performance of hermetic bags in green gram [Vigna radiata (L.) R. Wilczek] storage for managing pulse beetle (Callosobruchus chinensis)

Impact of storage technologies and duration on insect pest population, post‐harvest losses, and seed quality of stored chickpea in Ethiopia

“…In the present study, the percentage of germination remained within the acceptable range (>80%) in the hermetic bags (84.7–85%) after 6 months of storage, but it drastically decreased to 48.7–58.33% along the months of storage time in the traditional bags, which is by far below the accepted ranges. Our result was similar to other findings that reported poor germination of different crops such as chickpea, 14,42 green gram, 37 common bean, 38 and maize 36 stored in traditional bags along the months of storage time. Hermetic bags on the other hands were reported to be effective in maintaining a high level of seed germination (>85%) along the months of storage time 14,39,43 .…”

“…These findings align with previous studies that have demonstrated the effectiveness of hermetic bags in maintaining stable seed moisture content 14,15,18,36 . Similar results have been reported for other crops, such as green grams, where moisture content increased in PP and jute bags but remained consistent in hermetic bags over a 6‐month storage period 37 . The ability of hermetic bags to block moisture flow from the atmosphere into the grains 16,22,38,39 and to exclude oxygen, 16,17,37 which is necessary for the respiration process of insect pests, contributes to the maintenance of safe storage moisture content in hermetic bags for prolonged storage durations.…”

“…In the current study, significantly higher levels of chickpea grain damage (ranging from 14.3% to 35.5%), weight loss (8.3% to 22%), and dockage (1%) were observed in non‐hermetic storage units compared to hermetic bags, which exhibited mean values of 2.2% to 3.2%, 0.43% to 1.27%, and 0.3% for grain damage, weight loss, and dockage, respectively. Similar findings have been reported in various other stored agricultural products such as common bean, 38 field pea, 16 green gram, 37 Dolichos Bean, 43 chickpea, 14 cowpea, 41 maize, 15,22,36,39,47 and wheat, 29 highlighting the higher levels of grain damage and weight loss in grains stored in traditional storage facilities compared to improved hermetic storage technologies.…”

“…Similar findings were reported for hermetic bags used to preserve chickpeas for 6 months, where a decrease in oxygen content (20.6% to 8.4%) and an increase in carbon dioxide content (0.1% to 17.3%) were observed 14 . Similarly, a significant drop in oxygen level from 20% to 6.4% was reported in hermetic bags containing green gram under C. chinensis infestation 37 . These results suggest that hermetic bags create an environment with reduced oxygen and increased carbon dioxide levels, which can limit insect respiration and inhibit their growth.…”

A comprehensive review on advances in storage pest management: Current scenario and future prospects

“…Many researchers studied the comparative efficacy of developed hermetic bags. More recently, Yewle et al (2022) compared the efficiency of a few hermetic bags such as PICS R , Grain Pro R , SaveGrain R and Ecotact bags R in comparison with conventional bags such as jute and PP woven. They reported the O 2 reduction to 6.4% that results in killing of insects within 2 months of storage.…”