A standard , large pre-finished African Violet will normally be 31 to 33 weeks old and will have 5 to 7 open blooms. Also see Small Pre-Finished . Immature stage of insects. Often appear worm-like. See Black Vine Weevils and Caterpillars .
Flowers are two-tone pink stars .
Leaves are dark green. More information . Lethal dose 50 percent. Refers to a rating system used to classify the toxicity of pesticides to humans. Specifically, the rating tells how much of a given pesticide must be administered to each memeber of a sample group to kill 50 percent of that group.