The purpose of the research - cattle dictyocaulosis studying under the conditions of dairy cattle breeding in Vologda oblast. Materials and methods. In 2006-2015, the main issues of the dictyocaulosis epizootology have been studied, and measures for effective therapy and prevention have been developed. Results and discussion. Infestation with dictyocaulus in different climatic and geographical zones of the oblast is dissimilar. The greatest infestation was noted in the northwest zone, and the lowest in the southwest one. A parasitizing of Dictyocaulus viviparus was found out. Infestation of animals occurs in the summer grazing season. Prevalence reaches maximum in September (82.4%) under the infection intensity, on average, 150.7 ± 8.8 units per animal. Dictyocaulus larvae were first found in feces in the second decade of June. The most infected are animals 1-2 years old. Preparations helmicide and fesol are the most effective for dehelminthization against dictyocaulus. Given the foregoing, measures for the therapy and prevention of cattle dictyocaulosis in the non-Chernozem zone of the Russian Federation have been developed.