Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: American bullfrog control: Direct removal of adults One replicated study in Belgium found catchability of adult bullfrogs in small shallow ponds using one double fyke net for 24 h to be very low. One small study in the USA found that bullfrog adults can be captured overnight in a single trap floating on the water surface. One replicated, controlled study in the USA found that bullfrog populations rapidly rebounded following intensive removal of the adults. One before-and-after study in France found a significant reduction in the number of recorded adults and juveniles following the shooting of metamorphosed individuals before reproduction, when carried out as part of a combination treatment. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1045https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1045Fri, 03 Jul 2015 15:20:46 +0100Collected Evidence: Collected Evidence: Crassula helmsii: Chemical control using herbicides Seven studies (including one replicated and controlled study) in the UK, found that applying glyphosate reduced Crassula helmsii. In one before-and-after study at a single site glyphosate applied in combination with diquat reduced C. helmsii by 98%. Another before-and-after study at a single site found that covering C. helmsii with carpet before treating with glyphosate resulted in an 80% reduction in the plant. Three out of four studies (including one controlled study) in the UK found that applying diquat or diquat alginate reduced cover or eradicated submerged C. helmsii. One before-and-after study at a single site found that applying both diquat and glyphosate reduced C. helmsii by 98%. One small, before-and-after trial found no effect of diquat or diquat alginate on cover of C. helmsii. One out of two studies (including one replicated, controlled study) in the UK, found that treating submerged C. helmsii with dichlobenil in container trials led to partial reduction in its biomass. One small before-and-after field study found no effect of dichlobenil on C. helmsii. One replicated, controlled container trial in the UK found that treatment with terbutryne partially reduced biomass of submerged C. helmsii. The same study found reductions in emergent C. helmsii following treatment with asulam, 2,4-D amine and dalapon. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1279https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1279Tue, 05 Jul 2016 16:29:26 +0100Collected Evidence: Collected Evidence: Crassula helmsii: Use salt water to kill plants Two replicated, controlled container trials and two before-and-after field trials in the UK found that seawater eradicated Crassula helmsii. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1288https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1288Tue, 12 Jul 2016 09:14:42 +0100Collected Evidence: Collected Evidence: Crassula helmsii: Use lightproof barriers to control plants Five before-and-after studies in the UK found that covering Crassula helmsii with black sheeting or carpet strips eradicated or severely reduced the cover of the plant. However, C. helmsii was reported to have progressively recolonized two of the sites where it had been had initially been reported as eradicated. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1294https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1294Tue, 12 Jul 2016 09:39:41 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Biological control using herbivores One replicated, controlled laboratory study in Portugal found that grass carp did not reduce biomass or cover of parrot’s feather. Two replicated, randomized field studies in Argentina and the USA found that stocking with grass carp reduced the biomass or abundance of parrot’s feather. One field study in South Africa reported reduced growth of parrot’s feather following the release a South American leaf-feeding Lysathia. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1599https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1599Fri, 20 Oct 2017 14:58:11 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - 2,4-D Three laboratory studies (including two replicated, controlled studies and one randomized, controlled study) in the USA and Brazil found that the herbicide 2,4-D reduced the growth of parrot’s feather. One replicated, controlled laboratory study in Brazil found that 2,4-D led to a greater reduction in growth of parrot’s feather than the herbicides diquat, glyphosate or imazapyr. One replicated, randomized, controlled field study in Portugal found that 2,4-D amine reduced the biomass of parrot’s feather. One randomized, controlled field study in Portugal found that the combined application of 2,4-D and MCPA completely eliminated parrot’s feather. One randomized, controlled laboratory study in the USA found that the combined application of 2,4-D and carfentrazone-ethyl led to a higher reduction in the cover of parrot’s feather than the application of the herbicide dichlobenil eight days after treatment but not 45 days after treatment. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1606https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1606Fri, 20 Oct 2017 16:31:34 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - carfentrazone-ethyl Five laboratory studies (including one replicated, controlled, before-and-after study) in the USA found that carfentrazone-ethyl reduced growth in parrot’s feather. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1676https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1676Mon, 23 Oct 2017 08:54:36 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - diquat Two laboratory studies (including a replicated, randomized, controlled study) in the USA found that diquat reduced the growth of parrot’s feather. One replicated, randomized, controlled field study in Portugal found that growth was not reduced after the application of diquat. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1680https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1680Mon, 23 Oct 2017 09:11:46 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - endohall Two replicated, controlled laboratory studies in New Zealand and the USA found that endothall reduced the growth of parrot’s feather. One replicated, randomized, controlled field study in New Zealand found that parrot’s feather plants treated with endohall presented lower cover soon after herbicide application but cover later increased to levels similar to pre-treatment. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1681https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1681Mon, 23 Oct 2017 09:16:19 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - triclopyr Two replicated, controlled laboratory studies in New Zealand and the USA reported reduced growth of parrot’s feather following treatment with triclopyr. One replicated, before-and-after and one replicated, controlled field study in New Zealand found that cover was reduced after treatment with triclopyr. However, one of the studies noted that cover later increased to levels close to pre-treatment. One replicated, controlled laboratory study in New Zealand found that the application of triclopyr led to a greater reduction in cover than the application of glyphosate. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1689https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1689Mon, 23 Oct 2017 10:03:03 +0100Collected Evidence: Collected Evidence: Parrot’s feather: Use of herbicides - other herbicides One replicated, controlled laboratory study in New Zealand found that the application of dichlobenil reduced the growth of parrot’s feather. Two replicated, randomized, controlled field studies in Portugal and New Zealand found that the application of dichlobenil reduced cover less than the combined application of the herbicides 2,4-D and MCPA eight days after treatment but not 45 days after treatment and that plants treated with dichlobenil presented lower vegetation cover soon after herbicide application but cover later increased to levels close to pre-treatment. Three laboratory studies (including two replicated, controlled studies and one randomized, controlled study) in the USA found that the herbicides imazamox and imazapyr reduced the growth of parrot’s feather. One replicated, randomized, controlled field study in Portugal and one replicated, controlled, laboratory study in the USA reported reduced parrot’s feather biomass after treatment with glyphosate. One replicated, randomized, controlled field study in Portugal found that the application of gluphosinate-ammonium reduced the biomass of parrot’s feather. Three replicated, controlled laboratory studies in New Zealand and the USA found that treatment with fluridone, clopyralid and copper chelate did not reduce growth of parrot’s feather. One replicated, controlled laboratory study in the USA found that the application of flumioxazin reduced the growth of parrot’s feather. One replicated, randomized, controlled laboratory study in the USA found that the application of florpyrauxifen-benzyl reduced the growth of parrot’s feather. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1699https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1699Mon, 23 Oct 2017 11:11:47 +0100