Nematoda Ditylenchus dipsaci (Kühn, 1857) on garlic cultivated in the garden conditions

Abstract

In the Republic of Moldova to the cultivation of garden garlic, quite widespread is the stem parasitic nematode Ditylenchus dipsaci (Kühn, 1857). The extent of the invasion constitutes in many cases 78-90%, which often leads to total crop losses. In the vegetal tissue of the infested plants in the initial stages of ditylenchosis, collected during the summer period (June), was observed a monotypic primary popular of the vegetal tissue only with the species D. dipsaci (females, males, larvae, eggs). Subsequent observations have shown that in advanced stages of ditylenchosis the monotypic primary population is substituted by the heterotypic secondary population. In such tissue, the distribution of parasitic nematodes takes place as follows: parasitic nematodes D. dipsaci (females, males, larvae), account for 10.1% of the total; secondary parasitic nematodes (females, males, larvae) - 83.6%, most being of the order Rhabditida (species from the families Panagrolaimidae, Diplogasteridae, Cephaloidae); eggs-6.3%.