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Common Agricultural Weeds

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Crabgrass

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Digitaria spp. Highly adaptive and can quickly spread, creating dense mats that impede crop growth.

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Russian Thistle

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Salsola tragus. Known for tumbler weeds that spread their seeds over a wide area, it competes with crops for water.

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Pigweed

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Amaranthus spp. Competes fiercely with crops for light and nutrients, can emerge throughout the growing season.

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Quackgrass

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Elymus repens. Its strong root system competes with crops for nutrients and water, and can host crop diseases.

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Horseweed

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Conyza canadensis. Competes with crops and can be problematic due to its ability to produce large amounts of airborne seed.

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Giant Foxtail

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Setaria faberi. Competes with crops and has the potential to reduce harvest quality and equipment efficiency.

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Cocklebur

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Xanthium strumarium. Impedes harvest by tangling in equipment and can outcompete young crops.

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Field Bindweed

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Convolvulus arvensis. A vine that twines around crop plants, which can limit growth and access to sunlight.

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Dandelion

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Taraxacum officinale. Competes with crops for light, nutrients, and water, reducing yields.

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Common Ragweed

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Ambrosia artemisiifolia. Causes allelopathic effects and can reduce crop growth and productivity.

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Prickly Lettuce

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Lactuca serriola. Reduces crop yield through direct competition and is known to be a host for certain plant viruses.

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Lamb's Quarters

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Chenopodium album. Consumes significant amounts of water and nutrients, impacting crop performance.

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Nutsedge

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Cyperus spp. Difficult to control, can significantly reduce crop yields by competing for resources.

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Canada Thistle

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Cirsium arvense. Spreads aggressively and reduces crop yield by competing for water and nutrients.

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Waterhemp

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Amaranthus tuberculatus. A tall weed that competes for resources and can develop herbicide resistance.

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Morning Glory

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Ipomoea spp. Vine that wraps around crops, reducing plant vigor and yield.

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Johnson Grass

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Sorghum halepense. Forms dense stands that outcompete crops and are difficult to control.

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Barnyard Grass

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Echinochloa crus-galli. Aggressive growth can smother young crops, reduce yields, and contaminate harvests.

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Velvetleaf

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Abutilon theophrasti. Known for its rapid growth and severe competition with crops for resources.

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Palmer Amaranth

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Amaranthus palmeri. Extremely competitive weed that can drastically reduce yields and is resistant to multiple herbicides.

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