Pesticide Half-life and Mode of Action
Q: What is the half-life in soil of 2,4-D? How can I tell if it is the culprit for damage to my tomatoes?
A: 2,4-D is a common component of broadleaf weedkillers. According to material from Canada, the half-life is 10 days and the effect on plants is cupping, puckering and strapping of leaves.
For a complete overview of many pesticides and their properties and effects see
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Basil Leaf Spot – Identification
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Beggarweed, Beggartick – Identification
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Mimosa tree seed pods
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Dragonflies – Field guide
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5
Hyssop
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Websites with Good Information about Landscape Plants
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Leafless, Dying Azalea
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Not Asian Ambrosia Beetles Identification
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Stinky Irises Caused By Borers
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5
Browning Hosta Needs Water
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