Plectosphaerella cucumerina as a bioherbicide for Cirsium arvense: proof of concept

被引：12

作者：

Bailey, Karen ^{[1
]}

Derby, Jo-Anne ^{[1
]}

Bourdot, Graeme ^{[2
]}

Skipp, Bob ^{[3
]}

Cripps, Mike ^{[2
]}

Hurrell, Geoff ^{[2
]}

Saville, David ^{[4
]}

Noble, Alasdair ^{[2
]}

机构：

[1] Agr & Agri Food Canada, 107 Sci Pl, Saskatoon, SK S7N 0X2, Canada

[2] AgResearch, Private Bag 4749, Christchurch 8140, New Zealand

[3] AgResearch, Tennent Dr, Palmerston North 4442, New Zealand

[4] Saville Stat Consulting, POB 69192, Lincoln 7640, New Zealand

来源：

BIOCONTROL | 2017年 / 62卷 / 05期

关键词：

Mycoherbicide; Canada thistle; Californian thistle; Creeping thistle; Plectosphaerellaceae; Asteraceae; PLECTOSPORIUM-TABACINUM; BIOLOGICAL-CONTROL; DISEASE; FUNGUS;

D O I：

10.1007/s10526-017-9819-7

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Plectosphaerella cucumerina (Lindf.) W. Gams was evaluated as a bioherbicide for Cirsium arvense L. (Scop.) using a Canadian and a New Zealand isolate. Both isolates defoliated C. arvense when applied at 10(13) conidia ha(-1) in water volumes ranging from 250 to 6400 l ha(-1) with a rapid decline in effect with declining conidial dose. Repeat application and the addition of the adjuvant Pulse (R) penetrant to the conidial suspension increased the disease severity in C. arvense. Maximum disease occurred at 20 degrees C with a 48 h post-application dew period. The experiments demonstrate that P. cucumerina can defoliate C. arvense under the environmental conditions of temperate pastures where the weed is problematic. The results also show that modifications to formulation and strategic application may reduce the 48 h dew period requirement and risk to non-target species respectively, supporting the conclusion that the fungus has potential as a bioherbicide for C. arvense.

引用

页码：693 / 704

页数：12

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