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APPENDIX B: Calendar for Cultural Practices and Related Activities

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This chart summarizes when turf management practices are most effective as to timing of fertilization, mowing, irrigation, liming, soil testing, cultivation, and planting activities. These dates are only approximate guidelines and are not intended to indicate absolute start and end dates for all regions of Massachusetts. Consult the appropriate pest sections in this guide for cultural practices recommended for pest management.

Weeds J F M A M J J A S O N D Comments
Cultivation
(aerification, dethatching)
                                                Practice during peak shoot growth; terminate 2 weeks before low or high temperature stress.  Fall cultivation is often preferable due to annual grass weed pressure in spring.
Fertilization                                                 If 1 time per year, apply in early fall. If 2 times per year, apply in spring and early fall. If 3 times per year, apply in early spring, late spring/early summer, and early fall.
Irrigation                                                 Irrigate at leaf roll/fold (mild stress), avoid over-watering.
Liming                                                 Apply any time the ground is not frozen, effective with aerification. Use caution later in the season as fall liming can increase Microdochium patch.
Mowing                                                 Continue to mow using the 1/3 rule until shoot growth ceases.
Planting (seeding, over-seeding)                                                 Late summer - early fall plantings are preferred, followed by spring. Avoid early summer and mid-summer plantings.
Soil testing                                                 Sample anytime the ground is not frozen; avoid recently fertilized and limed areas.