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| Titel: |
Biological Control and Use of Adjuvants against Multiple Seeded Cocklebur (Xanthium strumarium) in Comparison with Several Other Cocklebur Types |
| Auteur: |
Abbas, H. K. Johnson, B. J. Pantone, D. J. Hines, R. |
| Verschenen in: |
Biocontrol science and technology |
| Paginering: | Jaargang 14 (2004) nr. 8 pagina's 855-860 |
| Jaar: |
2004-12 |
| Inhoud: |
Common cocklebur has several biotypes including multiple seeded cocklebur (MSC), NCC-TX, and NCC-MS. Alternaria helianthi applied at 2.5×104 conidia mL-1 in a 50% micro-emulsion of unrefined corn oil (MESUCO) or 0.2% Silwet L 77 caused 60-75% mortality on NCC-TX and MSC. Increasing the conidial concentration to 5×104 mL-1 increased mortality to 100% on MSC and NCC-TX, and 75% on NCC-MS. At 10×104 conidia mL-1, A. helianthi caused 100% mortality in all three biotypes. No mortality occurred in any biotype at inoculation rates of 2.5 and 5×104 conidia mL-1 when applied in water. Increasing the dew period from 0 to 12 h increased mortality from 0 to 100% on all three biotypes at a rate of 2.5×104 conidia mL-1 in Silwet and MESUCO. MSC appears to be the most sensitive biotype. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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