Abstract: This invention relates to a method and apparatus for collecting subsamples of soils to be tested for infestation and nutrient content. The apparatus includes a sampling tube which is mounted on a collecting wheel which is mounted on a frame. During operation, the apparatus is lifted off the ground. To take a sample, the apparatus is lowered such that the wheel makes contact with the ground. This causes the wheel to rotate, forcing the sampling probe into the ground. The sample empties into the interior of the wheel where it mixes. The mixed sample is later removed and boxed for testing.