WAGNER, Viktoria and CR NELSON. Herbicides Can Negatively Affect Seed Performance in Native Plants. RESTORATION ECOLOGY. HOBOKEN: WILEY-BLACKWELL, 2014, vol. 22, No 3, p. 288-291. ISSN 1061-2971. doi:10.1111/rec.12089.
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Basic information
Original name Herbicides Can Negatively Affect Seed Performance in Native Plants
Authors WAGNER, Viktoria (276 Germany, guarantor, belonging to the institution) and CR NELSON (840 United States of America).
Edition RESTORATION ECOLOGY, HOBOKEN, WILEY-BLACKWELL, 2014, 1061-2971.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.838
RIV identification code RIV/00216224:14310/14:00080208
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1111/rec.12089
UT WoS 000336842500004
Keywords in English aminopyralid; exotic plants; germination; invasive plants; invasive species management; land management; non-target effects; pesticides; picloram; restoration; seeding; seeds; toxicity
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 20. 5. 2015 13:05.
Abstract
Herbicides are widely used to control invasive non-native plants in wildlands, yet there is little information on their non-target effects, including on native plants that are intended to benefit from the treatment. Effects at the seed stage have been particularly understudied, despite the fact that managers commonly seed native plants immediately after herbicide application. We conducted a greenhouse experiment to explore the effects of two broadleaf-specific herbicides (aminopyralid and picloram) on seedling emergence and biomass for 14 species that grow in dry grasslands of NW North America. For each species, we placed 50 seeds in soil-filled pots that were sprayed with a water control or one of the herbicides at one of two rates (1x and 0.01x of the recommended rate). After 5weeks, we assessed seedling emergence and dry aboveground biomass per pot. At the recommended rate (1x), both her bicides significantly suppressed seedling emergence and lowered biomass. At the diluted rate (0.01x), the effect of picloram was comparable to the effect at the recommended rate, whereas aminopyralid had no effect. There was no difference in effects of herbicides on native versus non-native species. Although both herbicides are considered to be broadleaf-specific, monocots were just as vulnerable as dicots at the recommended rate. Our results show that herbicides can harm non-native and native plants at the seed stage, alike. Land managers should avoid spraying if recruitment of native species from the seedbank is a goal and should not seed directly after spraying.
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