南方根瘤線蟲在田間對殺線蟲劑之感受性

The Susceptibilty of Meloidogyne Incognita to Nematicides in Fields

林新強(H. C. Lin) ； 陳珮臻(P. C. Chen) ； 蔡東纂(T. T. Tasy)

《植物病理學會刊》 13卷4期 (2004/12) Pp. 335-338

https://doi.org/10.6649/PPB.200412_13(4).0012

摘要

在2003至2004年間，收集田間10個南方根瘤線蟲(Meloidogyne incognita)族群，以普伏松(ethoprop)、芬滅松(phenamiphos)、加保扶(carbofuran)、歐殺滅(oxamyl)四種非燻蒸性(non-fumigate)殺線蟲劑處理田間族群之二齡幼蟲，比較其對藥劑感受性程度。結果顯示，以普伏松有效濃度100ppm處理後，SJ-3、SJ-4、SJ-5及SJ-7四個族群的南方根瘤線蟲，致死率均小於18%，顯示這些族群對普伏松具有抗藥性。田間所有線蟲族群於芬滅松100ppm濃度時之致死率均高於73%。以加保扶1000ppm濃度處理，SJ-2、SJ-3、SJ-4及SJ-5四個線蟲族群的致死率小於48%，但於1000ppm時，上述族群均無抗藥性。田間的族群經測試顯示具有對單一或多種藥劑的抗藥性。其中以具加保扶抗藥性的線蟲族群最多，而芬滅松抗藥性族群則是最少。

關鍵字

南方根瘤線蟲 ； 抗藥性 ； 非燻蒸性殺線蟲劑 ； Meloidogyne incognita

並列摘要

Ten populations of Meloidogyne incognita were collected in the field form 2003 to 2004. The second stage M. incognita juvenile were treated with different concentration of ethoprop, phenamiphos, carbofuran and oxamyl, and the mortality rate were recorded. The results showed field populations had various levels of resistance to tested nematicides. Most populations had the highest degree of resistance to carbofuran. when treated with 100 ppm ethoprop, four populations (SJ-5, SJ-6, SJ-7 and SJ-9) had mortality rate smaller than 18%, it indicated a high nematicide resistance to ethoprop. All field populations had mortality greater than 73% when treated with phenamiphos at 100 ppm. Three populations (SJ-4, SJ-5 and SJ-7) still showed smaller than 32% mortality at carbofuran 1000 ppm indicated a very high degree of carbofuran resistance. At oxamyl 100 ppm, four populations (SJ-4, SJ-5, SJ-6 and SJ-7) had mortality smaller than 48%, when concentration increased to 1000 ppm, all field populations had no oxamyl resistance. This study found that field M. incognita populations had one or more nematicide resistance. Over all, these populations had most resistance to carbofuran, the least to phenamiphos.

並列關鍵字

Meloidogyne incognita ； nematicide resistance ； non-fumigate nematicide