Abstract
Background and Objective: Maize is one of the most important food crops in developing countries.The maize weevil, Sitophilus zeamais, is one of the most important post-harvest pests of the crop.This study was conducted to evaluate the effects of hermetic and non-hermetic containers as well as black polythene plastic bags treated in the sun on maize weevil survival and seed viability.Materials and Methods: The treatments were three unreplicated black polythene plastic bags and two plastic water bottles.The black polythene plastic bags were prepared manually.In each of these containers, 150 g of undamaged, weevil-free maize grain was added along with 15 live adult maize weevils.One of the plastic water bottles was kept hermetically sealed, while the other was perforated to allow air entry.The black polythene plastic bags were tightly sealed and put in the sun at a mean temperature of 30°C for 20 min, 40 min and an hour, respectively.Treatments of the plastic water bottles were kept for a week.Data were analysed using Excel software.Results: The oxygen depletion resulted in 100% adult weevil mortality after a week in a hermetic container.The black polythene plastic bags exposed to the sun for 40 min to 1 hr resulted in 100% adult mortality.The germination test results in this study indicated that black polythene plastic bags exposed to the sun for a maximum of an hour and above resulted in decreased germination capacity.Conclusion: The hermetic containers and black polythene plastic bags were thus found to be effective against maize weevil control.
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Claims 4
Claim · model-written summary
Hermetic storage caused 100% adult maize weevil mortality after a week.
- Treatment
- hermetic containere0
- Interactor
- maize weevil
Sitophilus zeamaist1pest - Outcome
- adult weevil mortalitye0
- Direction
- increaseinferrede0
- Value
- 100%e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oxygen depletion resulted in 100% adult weevil mortality after a week in a hermetic container”
t0“Maize”
t1“maize weevil”
Claim · model-written summary
Sun exposure of black bags for 40 minutes to one hour caused 100% adult maize weevil mortality.
- Treatment
- black polythene plastic bags exposed to the sun for 40 min to 1 hre0
- Interactor
- maize weevilSitophilus zeamaist1pest
- Outcome
- adult mortalitye0
- Direction
- increaseinferrede0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The black polythene plastic bags exposed to the sun for 40 min to 1 hr resulted in 100% adult mortality”
t0“Maize”
t1“maize weevil”
Claim · model-written summary
Sun-exposed black bags for an hour or longer reduced maize germination capacity.
- Treatment
- black polythene plastic bags exposed to the sun for a maximum of an hour and abovee0
- Outcome
- germination capacitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“black polythene plastic bags exposed to the sun for a maximum of an hour and above resulted in decreased germination capacity”
t0“Maize”
Claim · model-written summary
The authors concluded that hermetic containers and black bags were effective for maize weevil control.
- Interactor
- maize weevilSitophilus zeamaise0pest
- Outcome
- hermetic containers and black polythene plastic bags were thus found to be effective against maize weevil controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hermetic containers and black polythene plastic bags were thus found to be effective against maize weevil control”
t0“Maize”
The same questions in other papers
poly(ethylene) · growth · Zea mays (maize)Positive and negative results
7 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.