Gracilacus wuae n. sp. from soil associated with cow parsnip in Ontario, Canada is described and illustrated. Morphologically, females have a long stylet ranging from 80 to 93 µm long, the lip region not offset from the body contour, without lateral lips but with large and flat submedian lobes, the mouth opening slit-like elongated laterally and surrounded by lateral flaps, the excretory pore i...

three species of paratylenchus were collected and identified from vineyards and apple orchards in kermanshah province, western iran. descriptions, morphometric data, line drawings and microscopic photographs are provided for these three species. paratylenchus audriellus and paratylenchus straeleni are the two very closely related species, with a stylet longer than 40 µm, four lateral lines and ...

sues formed a necrotic pit sur rounded by healthy root tissue (Fig. 7). No evidence of damage to stelar tissue was detected, Scotto La Massese (7) repor ted that C. pestis females became at tached to the root surface by their stylets in a manner similar to Gracilacus peratica Raski, a species which also forms colonies on the root surface of its hosts. G. peratica females become swollen and rema...

Кулпунай Fragaria ananassa Duch. дүйнө жүзүндө кеңири аянттарда өстүрүлгөн, көп жылдык чөп өсүмдүгү. Ал субтропикалык жылуу, салкын климатта эң жакшы өсүп, анын жемиштери өзгөчө өңү, жыты жана даамы менен адамзат үчүн өтө баалуу азык болуп саналат. толук бышкан абалында таза түрүндө, андан сырткары таттууларды ичимдиктерди жасоодо колдонулат. өстүрүүчүлүк Кыргызстанда маанилүү артыкчылыктуу баг...

Background: Plant-parasitic nematodes are important pests of horticultural crops causing damage and significant reduction in the crop yield of pineapple. A survey was conducted to determine the types, frequency and population distribution of plant-parasitic nematodes associated with pineapple in some pineapple-producing states in Nigeria. A total of 30 farms were sampled from Delta, Imo, and Cr...