Researchers at the Agricultural Research Service have found the application of herbicides to fields late in the weeds ' growing season greatly reduces their seed production, and therefore fewer weeds will return the following season.

Researchers at the Agricultural Research Service have used Huanglongbing-infected lemon trees to infect periwinkle plants in an effort to study the disease.

Researchers at the Agricultural Research Service have calibrated a model for forest canopies that measures and estimates the amount of carbon a forest canopy absorbs / releases due to photosynthesis / respiration.

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