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- W2181643596 abstract "An experiment was conducted to assess the efficacy of the systemic insecticide imidachloprid (Marathon® 1% granular) against the two-spotted leafhop- per, Sophonia rufofascia (Kuoh and Kuoh). A high (3.3 ml) and low (1.6 ml) rate of imidachloprod was applied to the endangered Hawaiian plant Munroidendron racemosum (Forbes) Sherff in 30.5 cm pots. Early nymphal stages of S. rufofascia were placed on plants at 5, 12, 25, 37, and 50 d after application and counted 24 h later. At the high rate, leafhopper mortality was >80% for more than 5 wk. Imidachloprid is potentially a valuable tool for pest management of rare and endangered species in botanical gardens and in the wild. The two-spotted leafhopper, Sophonia rufofascia (Kuoh and Kuoh), is a recent acciden- tal introduction to the Hawaiian Islands. It has been recorded in Hawaii from 307 plant species in 83 families (Fukada 1996), of which 66 are endemic or indigenous and 16 are listed as threatened or endangered. In some cases, botanical gardens and natural preserves are the only means to prevent extinction of endangered plants. For example, Munroidendron racemosum (Forbes) Sherff occurs in nature as a dozen populations with a total of 50-100 plants on the island of Kauai (USFandWS 1995), and is being propagated by the Honolulu Botanical Garden from tissue culture for reintroduction into wild areas. The two-spotted leafhopper attacks M. racemosum in botanical gardens and in the wild, and insecticides may be necessary to reduce plant stress and ensure survival. The objective of this study was to test the efficacy of the sys- temic insecticide imidachloprid against S. rufofascia on M. racemosum." @default.
- W2181643596 created "2016-06-24" @default.
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- W2181643596 date "2000-01-01" @default.
- W2181643596 modified "2023-09-26" @default.
- W2181643596 title "SCIENTIFIC NOTE Imidachloprid as a Protectant for Endangered Plants Attacked by Sophonia rufofascia" @default.
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