Symochko V. The biotic communication pf phytopathogenic bacteria with useful and harmful entomofaunous of pears plantings

3. Object of researches: bacterial illnesses of a pear. The purpose of work: to investigate probable biotic communications phytopathogenic of bacteria with insects of pear plantings in Ukraine. Methods of researches. An establishment of specific structure of insects. The bacteriological analysis of insects on different nutritious and selective environments. Establishment phytopathogenic properties of bacteria. Studying of morphological features with use of light and electronic microscopy. The relation isolates to various power supplies. Serological of methods. Results: Behind the data of the bacterial analysis of insects it is established, that useful entomofaunous is not an ecological niche phytopathogenic bacteria of a pear in conditions Chernivtsi and Thranskarpatian province, 7 kinds of insects - phytofages were carriers Pseudomonas syringae pv. syringae and 1 kind - Erwinia amylovora. In laboratory conditions it is shown, that Hyphanthria cunea can be mechanical carrier P. syringae pv. syringae ata stage of a track. The activator of a bacterial burn fruit can be stored in Tortricid during stages of a track, a doll and imago, Tortricid can be considered as biological carriers E. amylovora. It is lead up, that activators of bacterial illnesses of a pear are revealed not only at phytofages, which eat infected material (apple's a plant louse), together with with entomofages, which eat these insects - wreckers (a ladybird seven-dot), from 40 which % is isolated P. syringae pv. syringae and E. амylovora. Novelty: First time in Ukraine it is carried spent the bacteriological analysis useful entomofaunous and insects - phytophages of pear gardens for revealing phytopathogenic of bacteria, in investigation of that kinds of wreckers which were carriers of activators bacteriosis pears in a nature are marked. In laboratory conditions it is established possible biological carriers phytopathogenic of bacteria. Practical value of results: it Is given the list from 7 kinds of insects - phytophages which can be mechanical carriers of the activator necrose reproach fruit, namely Anthonomus pyri, Stephanitis pyri, Psylla pyri, Dysaphis reaumuri, Hyphanthria cunea, Laspeyresia pomonella that L. pyrivora. As Tortricid can act as biological carriers of the activator of a fire blight (E. amylovora can be kept from a stage of a track up to a stage imago) in orchards where there is a danger of entering bacteriosis, it is necessary to carry out chemical sprayings against Tortricid independence of their number. Results of researches can be used in system of quarantine actions for localization and liquidation of the centers of a fire blight. Sphere of application: agriculture.