Protecting of decorative plants of open soil from wreckers in the conditions of subtropical climate
The article presents data characterizing the state of the stands of the Black Sea coast (Krasnodar Territory), which show obvious signs of damage from such species as the caterpillar boxwood moth, American white butterfly and marble bug. The analysis has shown that with the onset of the pupal stage, the death of the box moth is not observed. Caterpillars of the American white butterfly settle in groups in arachnoid nests, feed on various species of woody plants, during the outbreak of mass reproduction eating them completely. Marble bug - feeds on young branches, leaves and fruits, thereby causing great damage to ornamental plants and leads to strong crop losses of fruit and subtropical crops. The climatic conditions of the region contribute to the intensive reproduction and development of a number of pests and pathogens. The paper shows the degree of weakness of tree species and the scale of their extinction. It is noted that the possible direct impact on the increase in the number of pests in the study area is caused by the absence of frosts and the dark winter period in 2018. This fact indicates the possible extinction of both boxwood and other plantations in the study area. The paper provides recommendations aimed at combating pests.