Abstract
Acanthoscelides obtectus Say (Coleoptera: Chrysomelidae) is a pest that causes economic losses particularly on dry beans. Various control methods, especially those involving chemical treatments, have been successfully used against this pest. However, excessive use of chemicals poses resistance problems in insects and also threatens environmental and human health. For this reason, producers and researchers have been turning toward alternative control methods. One such method is the use of microwave radiation. This technique results in minimal product loss while significantly reducing pest populations. In this study, the effects of different microwave levels on A. obtectus, a storage pest of beans, were determined. In the trials, 7 different exposure times (5, 10, 20, 40, 60, 80, and 100 seconds) and 5 different power levels (120, 350, 460, 600, and 700 watts) were applied to determine the mortality rate of the pest. The number of pest deaths was recorded. The laboratory production of this pest and the experiments were conducted in a room at 25±1 °C and 60±5% relative humidity. The results showed that mortality rates increased both with longer exposure to low radiation levels (120 watt, 100 sec., 73%; 350 watt, 60 sec., 100%) and with shorter exposure to high radiation levels (700 watt, 5 sec., 91%; 10 sec, 95%; 20 sec., 100%). The findings suggest that this method can be recommended as an alternative approach for controlling A. obtectus.
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Claims 6
Claim · model-written summary
At 120 watt for 100 sec., microwave exposure produced 73% A. obtectus mortality.
- Taxon
- beanse1
- Treatment
- 120 watt, 100 sec.e0
- Interactor
- A. obtectus
Acanthoscelides obtectuse1pest - Outcome
- mortality ratese0
- Direction
- increasede0
- Value
- 73%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mortality rates increased both with longer exposure to low radiation levels (120 watt, 100 sec., 73%; 350 watt, 60 sec., 100%)”
e1“A. obtectus, a storage pest of beans”
Claim · model-written summary
At 350 watt for 60 sec., microwave exposure produced 100% A. obtectus mortality.
- Taxon
- beanse1
- Treatment
- 350 watt, 60 sec.e0
- Interactor
- A. obtectusAcanthoscelides obtectuse1pest
- Outcome
- mortality ratese0
- Direction
- increasede0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mortality rates increased both with longer exposure to low radiation levels (120 watt, 100 sec., 73%; 350 watt, 60 sec., 100%)”
e1“A. obtectus, a storage pest of beans”
Claim · model-written summary
At 700 watt for 5 sec., microwave exposure produced 91% A. obtectus mortality.
- Taxon
- beanse1
- Treatment
- 700 watt, 5 sec.e0
- Interactor
- A. obtectusAcanthoscelides obtectuse1pest
- Outcome
- mortality ratese2
- Direction
- increasede2
- Value
- 91%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with shorter exposure to high radiation levels (700 watt, 5 sec., 91%; 10 sec, 95%; 20 sec., 100%)”
e1“A. obtectus, a storage pest of beans”
e2“mortality rates increased both with longer exposure to low radiation levels”
Claim · model-written summary
At 700 watt for 10 sec, microwave exposure produced 95% A. obtectus mortality.
- Taxon
- beanse1
- Treatment
- 10 sece0
- Interactor
- A. obtectusAcanthoscelides obtectuse1pest
- Outcome
- mortality ratese2
- Direction
- increasede2
- Value
- 95%e0
- Qualifier
- 700 watte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with shorter exposure to high radiation levels (700 watt, 5 sec., 91%; 10 sec, 95%; 20 sec., 100%)”
e1“A. obtectus, a storage pest of beans”
e2“mortality rates increased both with longer exposure to low radiation levels”
Claim · model-written summary
At 700 watt for 20 sec., microwave exposure produced 100% A. obtectus mortality.
- Taxon
- beanse1
- Treatment
- 20 sec.e0
- Interactor
- A. obtectusAcanthoscelides obtectuse1pest
- Outcome
- mortality ratese2
- Direction
- increasede2
- Value
- 100%e0
- Qualifier
- 700 watte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with shorter exposure to high radiation levels (700 watt, 5 sec., 91%; 10 sec, 95%; 20 sec., 100%)”
e1“A. obtectus, a storage pest of beans”
e2“mortality rates increased both with longer exposure to low radiation levels”
Claim · model-written summary
The authors recommend microwave radiation as an alternative for controlling A. obtectus in beans.
- Taxon
- beanse1
- Interactor
- A. obtectusAcanthoscelides obtectuse0pest
- Outcome
- alternative approach for controlling A. obtectuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this method can be recommended as an alternative approach for controlling A. obtectus”
e1“A. obtectus, a storage pest of beans”