Acertain type of non-native fungus has affected crops on tim’s farm. tim has decided to use a chemical control method to eradicate the invasive species. he applied a pesticide to the outer layer of the stems of his crops. which chemical control method did tim use? basal bark bundle and cut cut-stump treatment foliar spray

The correct option is A, that is, BASAL BARK.
Basal bark pesticides are the type of pesticides that are applied to the stems of the affected crops. Basal bark pesticides are usually applied using a low pressure back pack sprayer, which is used to thoroughly wet the lower ten to fifteen inches of the stems of the affected crops.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein