melon ladybeetle, epilachna chrysomelina (f.), is one of the key insect pests of cucurbit crops in asia and north africa. the development and reproduction of e. chrysomelina were studied on watermelon, snake cucumber, cucumber and melon under laboratory conditions. mean total life cycle from egg to adult female was 21.3, 21.7, 26.0, and 21.3 days on the mentioned host plants respectively. mean ...

Introduction: Cucurbitacins are highly oxygenated compounds abundantly found in Cucurbitaceous genera such as Citrullus, Cucumis, Cucurbita and Luffa (11). A relatively common cucurbitacin found in Cucurbitaceous species is cucurbitacin E (CuE). Although cucurbitacins exhibit positive effects both pharmacologically (1-3, 6, 14, 17) and in protecting the plants from certain diseases (5), they ha...

virus infections are a major limiting factor in cucurbit production in iran. cucumber green mottle mosaic virus (cgmmv) infects many cucurbit species in the world and causing mottle and systemic mosaic symptoms on cucurbitaceous plant leaves. during 2008-2009, from different cucurbitaceous species fields and cucumber greenhouses in razavi and northern khorasan provinces, 220 leaf samples with c...

Watermelon mosaic viruses 1 and 2 (WMV-1 and WMV-2) have both been collected in south and central Florida, but WMV-1 has been most prevalent in the southern and WMV-2 in the central counties. All WMV infections sampled from 1964 to 1969 in Collier and Hendry coun ties of south Florida were caused by WMV-1. Melothria pendula L., a native perennial cucurbitaceous weed, was found to be an over win...

Fruit flies are key pests of cucurbits in many parts of the world, including Tanzania. Developmental biology of Zeugodacus cucurbitae (Coquillett) has been determined across temperature regimes in some cucurbitaceous hosts, in limited geographies. This study was conducted to determine duration and survival rates of immature stages of Z. cucurbitae in three cucurbitaceous hosts, at different tem...

Phytophthora capsici is an aggressive plant pathogen that affects solanaceous and cucurbitaceous hosts. Nep1-like proteins (NLPs) are a group of effectors found particularly in oomycetes and considered important virulence factors. We identified an NLP gene (phcnlp1) from the highly virulent P. capsici strain Phyc12 that had an encoded polypeptide of 476-amino acid residues and a predicted molec...

Identification of plant disease is tough in agribusiness arena. If it inaccurate, there occurs a tremendous damage the production and economical price. Leaf Disease detection requires huge amount work, knowledge, processing time disease. The most used edible vegetable all over world from cucurbitaceous family. crops under this family have great economic value food industry its done large scale....