Rob Mikkelsen of the International Plant Nutrition Institute will discuss fertilizers and plant health, including fertilizer types, sources, and costs during three upcoming avocado seminars.

A grower panel will lead a discussion of successful fertilizer application strategies that generate optimum production and tree health.

• June 8, 2010, 1:00 - 3:00 p.m.

Cooperative Extension County Office auditorium

2156 Sierra Way, San Luis Obispo, Calif.

• June 9, 2010, 9:00 - 11:00 a.m.

Cooperative Extension County Office conference room

669 County Square Dr., Ventura, Calif.

June 10, 2010 at 1:00 – 3:00 p.m.

South Coast Winery Resort

34843 Rancho California Road, Temecula, Calif.