Producers have problems with such things as hail, high winds causing lodging in crops, drought, flooding, disease and weeds. They will also have challenges with insects, pests (such as deer), poor soil quality/nutrition, and soil erosion.
One problem GMO crops pose for farmers who do not grow them is cross pollination of GMOs in non-GMO crops, especially those that are grown organically.
grow crops
Tenant farmers grew a large variety of crops.
Three crops farmers might grow in the northeast are corn, fruits, and vegetables
There are many ways in which farmers grow crops in Central Asia. These farmers could use terrace farming for example.
They depended on the rain to grow there crops.
most grow a specific a crop.
farmers eat cash crops
corn
Crops and livestock.
i do not no
"Whenver farmers grow crops" is the subordinate clause in the sentence. It cannot stand alone as a complete thought and provides additional information about the main clause.