The Olmecs were the first major civilization in Mexico following a progressive development in Soconusco. They lived in the tropical lowlands of south-central Mexico, in the present-day states of Veracruz and Tabasco. It has been speculated that Olmec derive in part from neighboring Mokaya and/or MixeâZoque.
One of the most common types of mechanical injury to dogwoods is impact from lawnmowers. Injuries of this type can invite basal stem rot disease and insect borer infestation. Similarly, string trimmer impact can sometimes bruise or girdle the cambium (the vital layer of tissue under the bark).
One of these pests is the dogwood borer. The dogwood borer rarely kills a tree in one season, but if left unchecked, these pests can eventually kill a dogwood tree, especially a young dogwood tree. Keep reading to learn the symptoms of dogwood borers and dogwood borer control. Symptoms of Dogwood Borers. Most of the severe damage to dogwoods by this pest is caused by the dogwood borer larvae. Most often, dogwood borer larva will embed themselves in burrknots (lumps at the base of the trunk that were formed from undeveloped roots), in grafting collars or in healed bark wounds.