Poisonous to plants.
Toxic to plants. Partially composted organic matter may have acids or alchohols present that will harm young or sensitive plants. Partially-decomposed compost is therefore referred to as phytotoxic.
Injurious or lethal to plants.
An adjective describing a substance that has a toxic effect on plants. Immature or anaerobic compost may contain acids or alcohols that can harm seedlings or sensitive plants.
agents toxic to plants.
Harmful to plants.
a material which causes damage to plants.
detrimental to plant growth, caused by the presence of a contaminant.
fii-TOH-toX-ihk) A substance or compound which is toxic to plants. Some pesticides are phytotoxic.