Arizona Veg IPM Update: fall pest pressure, lettuce downy mildew, ‘yellow’ herbicides

Arizona Veg IPM Update: fall pest pressure, lettuce downy mildew, ‘yellow’ herbicides

With cooler temperatures in the Arizona low desert, expect a steady decline in insect abundance until temperatures begin to warm up again. The recent storm which passed through Arizona deposited a significant amount of rainfall in the region which can increase the development of downy mildew on lettuce.  

 

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