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The plant is toxic enough to cause human and animal fatalities if ingested. Every part of the plant is poisonous, especially the tuberous rhizomes. As with other members of the Colchicaceae, this plant contains high levels of colchicine, a toxic alkaloid. It also contains the alkaloid gloriocine.
Parasiticide – a general term to describe an agent used to destroy parasites. Pediculicide – an agent that kills head lice. Pesticide – a general term to describe an agent used to destroy or repel a pest. Rodenticide - an agent that kills rodents (especially rats and mice). Scabicide – a chemical agent for killing scabies.
Phytophthora (from Greek φυτόν (phytón), "plant" and φθορά (phthorá), "destruction"; "the plant-destroyer") is a genus of plant-damaging oomycetes (water molds), whose member species cause economic losses on crops worldwide, as well as environmental damage in natural ecosystems. The cell wall of Phytophthora is made up of cellulose.
competing with the desired plants for the resources that a plant typically needs, namely, direct sunlight, soil nutrients, water, and (to a lesser extent) space for growth, providing hosts and vectors for plant pathogens, giving them greater opportunity to infect and degrade the quality of the desired plants;
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They were discovered in the 1940s after a long study of the plant growth regulator auxin. Synthetic auxins mimic this plant hormone in some way. They have several points of action on the cell membrane, and are effective in the control of dicot plants. 2,4-D, 2,4,5-T, and Aminopyralid are examples of synthetic auxin herbicides.
A mature cotton thistle, an invasive weed in Australia.. A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock.
This pretty ground cover plant has scalloped leaves that catch and reflect dew and raindrops in the most enchanting way. Hundreds of tiny chartreuse flowers appear in spring. $14 at Great Garden ...