The potential of entomopathogenic nematodes of the genera Steinernema and Heterorhabditis for biological control of the pine lappet moth Dendrolimus pini L. (Lepidoptera: Lasiocampidae) in Scots pine stands

IF 3 2区农林科学 Q1 FORESTRY

Forestry Pub Date : 2023-02-25 DOI:10.1093/forestry/cpad008

Dorota Tumialis, Anna Mazurkiewicz, Lidia Florczak, Iwona Skrzecz

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引用次数: 0

Abstract

Abstract Protecting stands of Scots pine (Pinus sylvestris) from the larvae of the pine lappet moth (Dendrolimus pini) has been a problem for many years in Central Europe. The feeding habits of the larvae of D. pini often result in more than 50 per cent defoliation, which weakens trees and increases their susceptibility to unfavourable environmental conditions. The aim of this study was to evaluate the effectiveness of native isolates of the entomopathogenic nematodes Steinernema feltiae (Filipjev, 1934) and Heterorhabditis megidis (Poinar, Jackson and Klein, 1987), as well as of the commercial preparations Nemamax (Heterorhabditis downesi) (Stock, Griffin and Burnell), Entonem (S. feltiae) and E-nema GmbH (S. carpocapsae) in greenhouse experiments and field trials. The highest extensity of infection (>80 per cent) of the pine lappet moth with nematodes in the greenhouse experiments studies was found for the strain S. feltiae ZAG15. In field trials, a greater effectiveness was obtained using commercial preparations of S. feltiae (Entonem), which led to approximately a twofold reduction in the number of wintering D. pini larvae. The results of this study indicate that entomopathogenic nematodes can be considered a potential biological control agent for reducing the damage caused by D. pini larvae.

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松线虫属和异habditis属昆虫病原线虫对松毛虫蛾生物防治的潜力

保护苏格兰松(Pinus sylvestris)林分免受松垂蛾(Dendrolimus pini)幼虫的侵害一直是中欧地区多年来面临的问题。松叶线虫幼虫的摄食习惯常常导致50%以上的落叶，这使树木变弱，使它们更容易受到不利环境条件的影响。本研究的目的是在温室试验和田间试验中评估昆虫病原线虫Steinernema feltiae (Filipjev, 1934)和megidis Heterorhabditis (Poinar, Jackson and Klein, 1987)的本地分离株的有效性，以及商业制剂Nemamax (Heterorhabditis downesi) (Stock, Griffin and Burnell)、Entonem (s feltiae)和E-nema GmbH (s carpocapsae)的有效性。在温室试验研究中，发现菌株S. feltiae ZAG15对线虫的感染程度最高(> 80%)。在田间试验中，使用商业制剂获得了更大的效果，使越冬松毛虫幼虫的数量减少了大约两倍。本研究结果表明，昆虫病原线虫可作为一种潜在的生物防治剂，以减少松毛虫幼虫对松毛虫的危害。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Forestry 农林科学-林学

CiteScore

6.70

自引率

7.10%

发文量

审稿时长

12-24 weeks

期刊介绍： The journal is inclusive of all subjects, geographical zones and study locations, including trees in urban environments, plantations and natural forests. We welcome papers that consider economic, environmental and social factors and, in particular, studies that take an integrated approach to sustainable management. In considering suitability for publication, attention is given to the originality of contributions and their likely impact on policy and practice, as well as their contribution to the development of knowledge. Special Issues - each year one edition of Forestry will be a Special Issue and will focus on one subject in detail; this will usually be by publication of the proceedings of an international meeting.