Nematological investigation of the order Tylenchida, super-family Criconematoidea and sub-family Macroposthoniinae revealed presence two species genus Mesocriconema i.e., mamitensis n. sp. M. medani, in rhizospheres lemongrass pineapple, respectively, from Mamit district Mizoram, India. is characterized by body length = 0.34-0.45 mm, stylet 37.6-49.6 µm, R 117-120, RV 7-9, Rvan 1-2, Ran 5-7, Ro...

The expression of gastrodianin antifungal protein (GAFP) in a form of its VNF isoform increases tolerance to Phytophthora root rot (Phytophthora cinnamomi) and the root-knot nematode (Meloidogyne incognita) in transgenic plum lines. However, nothing is known about the potential of the GAFP lectin to confer disease resistance to the ring nematode, Mesocriconema xenoplax, in plum. Three transgeni...

In the nematode family Criconematidae, a taxonomy primarily based on cuticle characters has created classifications that are notoriously volatile. Molecular characters may lead to their stabilization. A phylogenetic tree of Criconematoidea was constructed using 166 new near full-length 18S rDNA sequences and 58 sequences from GenBank. Bayesian and maximum likelihood (ML) analyses produced trees...

Blueberry replant disease (BRD) is an emerging threat to continued blueberry (Vaccinium spp.) production in Georgia and North Carolina. Since high populations of ring nematode Mesocriconema ornatum were found to be associated with commercially grown blueberries in Georgia, we hypothesized that M. ornatum may be responsible for predisposing blueberry to BRD. We therefore tested the pathogenicity...

Fields in a concentrated area of soybean production in South Carolina were chosen for soil sampling to determine the distribution of plant-parasitic nematodes. Five hundred sampling sites were distributed over 19 counties according to county soybean acreage. Helicotylenchus and Scutellonema were identified most frequently from soil samples; together, these genera occurred in over 70% of the sam...

A survey conducted from May 1995 through August 1998 revealed diverse nematode communities in Louisiana sugarcane fields. High populations of Mesocriconema, Paratrichodorus, Pratylenchus, and Tylenchorhynchus were widespread in nine sugarcane production parishes. Comparisons of plant cane and ratoon sugarcane crops indicated that nematode community levels increase significantly in successive ra...

ABSTRACT: The continuous use of synthetic insecticides for controlling the arboviral vector Aedes aegypti has led to natural selection mosquito populations resistant different chemical groups. Thus, plant-derived compounds have emerged as a viable alternative vectorcontrol. This study determined whether crude methanolic extract (CME) from leaves Clibadium surinamense larvicidal activity against...