Impact of Trichoderma sp. on the Development of Heterobasidion Annosum in Decayed Understory Picea Abies Stumps-Reference-Cited by-同舟云学术

Impact of Trichoderma sp. on the Development of Heterobasidion Annosum in Decayed Understory Picea Abies Stumps

Published:2017-04-25 Issue:1-2 Volume:71 Page:52-56
ISSN:1407-009X
Container-title:Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.
language:en
Short-container-title:

Author:

Kenigsvalde Kristīne¹,Nitiša Dina¹,Saulīte Dace¹,Korhonen Kari²,Vulfa Līvija³,Nikolajeva Vizma³,Kļaviņa Dārta⁴,Brūna Lauma⁴,Gaitnieks Tālis¹

Affiliation:

1. Latvian State Forest Research Institute “Silava”, Rîgas iela 111, Salaspils, LV-2169, Riga , LATVIA

2. Finnish Forest Research Institute Metla, Jokiniemenkuja 1, Box 18, FI-01301, Vantaa , FINLAND

3. Faculty of Biology, University of Latvia, Kronvalda bulv. 4, Rîga , LV-1586, LATVIA

4. Forest Sector Competence Centre, SIA “MNKC”, Dzçrbenes iela 27, Rîga , LV-1006, LATVIA

Abstract

Abstract Heterobasidion annosum (Fr.) Bref. s.l. causes significant economic losses in conifer forests. Therefore, to reduce the spread of the infection surfaces of freshly cut conifer, stumps are commonly treated with biological control agents. Trichoderma sp. shows very strong antagonistic effect against H. annosum in vitro, but relatively few field studies have been conducted. Moreover, most of previous studies examined the impact of Trichoderma sp. on H. annosum in healthy conifer stumps. The aim of our work was to evaluate the effect of Trichoderma sp. against H. annosum in already decayed understory spruce stumps. In total, 75 decayed spruce stumps were surveyed. Part of the spruce stumps were left as a control, and the others were treated with one of two Trichoderma isolates (T472 and T945) belonging to two different species: T. viridescens and T. viride. The occurrence of H. annosum was evaluated 3 and 12 months after treatment. The main results were that the area of previously healthy wood occupied by H. annosum was larger in control stumps in comparison with treated stumps, but the differences were not statistically significant.

Publisher

Walter de Gruyter GmbH

Subject

Multidisciplinary

Reference31 articles.

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