Modelling nematode population growth and damage

被引：27

作者：

Ehwaeti, ME ^{[1
]}

Elliott, MJ ^{[1
]}

McNicol, JM ^{[1
]}

Phillips, MS ^{[1
]}

Trudgill, DL ^{[1
]}

机构：

[1] Scottish Crop Res Inst, Dundee DD2 5DA, Scotland

来源：

CROP PROTECTION | 2000年 / 19卷 / 8-10期

关键词：

Globodera; Meloidogyne; integrated control;

D O I：

10.1016/S0261-2194(00)00098-3

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Recent results on the population dynamics and damage relationships of root-knot nematode (RKN, Meloidogyne incognita) and of potato cyst nematode (PCN, Globodera pallida) are modelled, and a computer-based programme is used to explore different strategies for PCN control. Damage by RKN was shown to be density dependent, to increase with increasing duration of plant growth, and to be much greater for good than poor hosts. PCN populations both increase and decline more slowly than those of RKN, and modelling suggested that, when non-hosts are grown, differences in decline rates will have an accumulative effect on the effectiveness of rotation. Similarly, differences in nematicide effectiveness will have a major effect on post-harvest PCN populations, and nematicides were shown to be most effective when PCN populations are small. Host resistance is a key component of integrated management of nematodes and, because gene flow in soil is limited, it can be durable. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：739 / 745

页数：7

共 21 条

[1] DIFFERENTIAL EXPRESSION OF ROOT-KNOT NEMATODE RESISTANCE GENES IN TOMATO AND PEPPER - EVIDENCE WITH MELOIDOGYNE-INCOGNITA VIRULENT AND AVIRULENT NEAR-ISOGENIC LINEAGES [J].