Insect and nematode control. Reduce nematode and eelworm damage in crops by using this marigold in a rotation every 4-7 years. Produces good organic matter and smothers weeds. Sow in early summer when soil is warm, till into soil in late autumn after foliage is killed off by frost. 200-300 sds/gm. Planting Rate: 50g per 1000sq.ft