Abstract
The potential of herbicides for destroying banana plants infected with bacterial wilt has been evaluated. Experiments were conducted on station at Kawanda Agricultural Research Institute (KARI) and on-farm at Nekoyedde and Kimenyedde, in Mukono district. Two systemic herbicides, Glyphosate and 2,4-D were evaluated for their effectiveness in destroying infected banana plants. Selected plants were injected with 20 ml of herbicide in water at the rate of 1:20 administered in a perforated hole at the collar base of the pseudostem close to the corm using a sharp pencil-size metallic rod. All plants injected with 2,4-D herbicide snapped and died within 30-60 days while plants injected with glyphosate wilted and dried up within 90-120 days. Both herbicides were able to kill at least 85 percent of the plants. Plant destruction depended on herbicide dose, mat size and nature of suckering. Re-suckering rates between the two herbicides did not significantly differ. The mean re-suckering on farmer's fields was 1.5 percent for glyphosate and 7.2 percent for 2.4-D compared to 15.2 percent and 11.3 percent on the station. Herbicides were able to destroy plants within radius of 16.8 ± 1.76 cm from the injected plant per mat. Higher doses killed faster and better but it was not clear why very high doses caused high re-suckering. It was therefore concluded that although 2,4-D herbicide destroyed banana mats faster than Glyphosate, in the long run however, the efficiencies of kill between the two herbicides do not differ significantly. Both herbicides showed great potential for use as an option for removal or destruction of diseased plants. However, considering environmental safety issues, Glyphosate is recommended for farmer use in Uganda. (Author's abstract).[La potentialite des herbicides pour detruire les bananiers infectes par le fletrissement d'origine bacterienne a ete evaluee. Les experiences etaient conduites a la station de l'Institut de Recherche Agricole de Kawanda (KARI) ainsi que sur site a Nekoyedde et Kimenyedde dans le district de Mukono. Deux herbicides systemiques, Glyphusate et 2.4-D etaient evalues pour leur efficacite a detruire les bananiers infectes. Des plantes selectionnees recevaient une injection de 20 ml d'herbicide dans l'eau au taux de 1:20 administres au niveau d'un trou perfore a la base du col du pseudostem pres du rhizome utilisant une tige metallique fine de la taille d'un crayon. Toutes les plantes injectees de 2,4-D cassaient et mouraient dans une periode de 30-60 jours alors que les plantes injectees au Glyphosate fletrissaient et sechaient apres une periode de 90-120 jours. Tous les deux herbicides etaient capables de tuer au moins 80 pourcent de plantes. La destruction des plantes dependait de la dose d'herbicide, de la dimension du pseudotronc et de la nature du drageonnage. Les taux de re-drageonnage entre les deux herbicides ne differaient pas significativement. Le taux re-drageonnage moyen au champ etait de 1.5 pourcent pour le Glyphosate et de 7.2 pourcent pour le 2.4-D compares aux 15.2 et 1.3 pourcent a la station. Les herbicides etaient en mesure de detruire les plantes dans un rayon de 16.8±1.76 cm a partir de la plante injectee. Des doses plus elevees tuent mieux et plus rapidement mais il n'est pas clair pourquoi elles causent une re-drageonnage plus grande. On a donc conclu que bien que l'herbicide 2,4-D provoque une destruction du bananier plus rapide que celle de Glyphosate. A long terme cependant, l'efficacite des deux herbicides ne differe pas significativement. Tous les deux herbicides montrent un grand potentiel pour se debarrasser des plantes malades. Neanmoins, eu egard aux questions de securite environnementales, le Glyphosate reste l'herbicide recommande pour l'agriculteur en Ouganda. (Resume d'auteur).]
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Claims 13
Claim · model-written summary
2,4-D herbicide killed injected banana plants within 30-60 days, faster than glyphosate.
Not reportedDirection
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e1“All plants injected with 2,4-D herbicide snapped and died within 30-60 days”
e2“plants injected with glyphosate wilted and dried up within 90-120 days”
Claim · model-written summary
Glyphosate-injected banana plants wilted and dried up within 90-120 days, slower than 2,4-D.
- Taxon
- bananae0
- Treatment
- glyphosatee2
- Outcome
- wilted and dried upe2
- Value
- within 90-120 dayse2
- Comparator
- 2,4-D herbicidee1
Not reportedDirection
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e1“All plants injected with 2,4-D herbicide snapped and died within 30-60 days”
e2“plants injected with glyphosate wilted and dried up within 90-120 days”
Claim · model-written summary
Both herbicides killed at least 85 percent of the banana plants.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e3“Both herbicides were able to kill at least 85 percent of the plants”
Claim · model-written summary
Plant destruction depended on herbicide dose, mat size and nature of suckering.
Not reportedDirection
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e4“Plant destruction depended on herbicide dose, mat size and nature of suckering”
Claim · model-written summary
Glyphosate re-suckering was 1.5 percent on farmers’ fields, lower than 15.2 percent on the station.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e5“The mean re-suckering on farmer's fields was 1.5 percent for glyphosate and 7.2 percent for 2.4-D compared to 15.2 percent and 11.3 percent on the station”
Claim · model-written summary
2,4-D re-suckering was 7.2 percent on farmers’ fields, lower than 11.3 percent on the station.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e5“The mean re-suckering on farmer's fields was 1.5 percent for glyphosate and 7.2 percent for 2.4-D compared to 15.2 percent and 11.3 percent on the station”
Claim · model-written summary
Herbicides destroyed plants within a radius of 16.8 ± 1.76 cm from the injected plant.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e6“Herbicides were able to destroy plants within radius of 16.8 ± 1.76 cm from the injected plant per mat”
Claim · model-written summary
Higher herbicide doses killed plants faster and better.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e7“Higher doses killed faster and better”
Claim · model-written summary
Very high herbicide doses were associated with high re-suckering, for reasons not clear to the authors.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e5“it was not clear why very high doses caused high re-suckering”
Claim · model-written summary
2,4-D herbicide destroyed banana mats faster than glyphosate.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e7“2,4-D herbicide destroyed banana mats faster than Glyphosate”
Claim · model-written summary
In the long run, 2,4-D and glyphosate do not differ significantly in efficiency of kill.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e7“2,4-D herbicide destroyed banana mats faster than Glyphosate”
e6“in the long run however, the efficiencies of kill between the two herbicides do not differ significantly”
Claim · model-written summary
Re-suckering rates did not differ significantly between the two herbicides.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e6“Re-suckering rates between the two herbicides did not significantly differ”
Claim · model-written summary
Glyphosate is recommended for farmer use in Uganda, considering environmental safety.
Verbatim
e0“destroying banana plants infected with bacterial wilt”
e7“However, considering environmental safety issues, Glyphosate is recommended for farmer use in Uganda”
The same questions in other papers
herbicide · pest · MusaPositive and negative results
3 reporting no difference from an alternative
- positive
- positive
- positive
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.