Collect samples as close as possible to the time you will be sending them. If you need to take samples before the day you send them, store the samples in the refrigerator. Do not freeze samples or allow them to get wet. Pack the bagged samples inside a cardboard box. Do not pack samples with ice.
Ice packs can crush samples in shipment.
Do not include soil, insects, or other materials. Keep a copy of the tracking number for your package. In case the sample does not arrive on time, you will need the tracking number to check on it. You can keep shipping costs down by sending only the sample required. It is very important that you include all of this information with your samples.