Abstract
The insect known as maize weevil (Sitophilus zeamais) is one of the most important pests of stored corn in Brazil. Among the various forms of control, one can highlight the use of inert powders, which has advantages of not providing risk to the environment or to human and animal health, besides not having reports of insect resistance. Thus, this work evaluated the effect of different doses of diatomaceous earth on the development of Sitophilus zeamais on two temperature conditions on corn grain storage. A completely randomized design was adopted in a factorial 4x2x4 (diatomaceous earth dose x storage temperature x storage time) dosage, with three replicates. The diatomaceous earth doses were: 0, 250, 500 and 1000 g t-1 and subsequently stored at temperatures of 22 and 30°C for 90 days. The bulk density decreased during the storage for all diatomaceous earth doses applied, but in inverse proportion to the dose increment. Diatomaceous earth has proven better efficiency in the control of S. zeamais, with increase in dose and storage temperature. Dry weight decrease was observed in all doses and storage temperatures evaluated, but it was more pronounced in those grains that have not received the application of diatomaceous earth.
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Claims 5
Claim · model-written summary
Bulk density fell during storage at all doses, less so at higher doses.
- Taxon
- CORN
Zea mays subsp. mayst0 - Treatment
- diatomaceous earth dosese0
- Outcome
- bulk densitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN”
e0“The bulk density decreased during the storage for all diatomaceous earth doses applied, but in inverse proportion to the dose increment.”
Claim · model-written summary
Higher diatomaceous earth dose improved weevil control.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- Diatomaceous earthe0
- Interactor
- S. zeamais
Sitophilus zeamaise0pest - Outcome
- control of S. zeamaise0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN”
e0“Diatomaceous earth has proven better efficiency in the control of S. zeamais, with increase in dose and storage temperature.”
Claim · model-written summary
Higher storage temperature improved weevil control with diatomaceous earth.
- Taxon
- CORNZea mays subsp. mayst0
- Interactor
- S. zeamaisSitophilus zeamaise0pest
- Outcome
- control of S. zeamaise0
- Direction
- bettere0
- Setting
- storage temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN”
e0“Diatomaceous earth has proven better efficiency in the control of S. zeamais, with increase in dose and storage temperature.”
Claim · model-written summary
Grain dry weight declined at every dose and temperature.
- Taxon
- CORNZea mays subsp. mayst0
- Outcome
- Dry weighte0
- Direction
- decreasee0
- Qualifier
- all doses and storage temperatures evaluatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN”
e0“Dry weight decrease was observed in all doses and storage temperatures evaluated, but it was more pronounced in those grains that have not received the application of diatomaceous earth.”
Claim · model-written summary
Untreated grain had a larger dry weight loss than treated grain.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- diatomaceous earthe0
- Outcome
- Dry weight decreasee0
- Direction
- more pronouncede0
- Comparator
- those grains that have not received the application of diatomaceous earthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN”
e0“Dry weight decrease was observed in all doses and storage temperatures evaluated, but it was more pronounced in those grains that have not received the application of diatomaceous earth.”
The same questions in other papers
diatomaceous earth · growth · Zea mays (maize)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
diatomaceous earth · Sitophilus zeamais · Zea mays (maize)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.