The tomato leafminer Tuta absoluta Meyrick is a key insect pest of tomato in Tunisia and in many other countries around the world. The present study was carried out to attempt to acquire better knowledge of the biology of this insect and to implement suitable prophylactic control tools for T. absoluta in Northeastern Tunisia. Under greenhouse conditions, T. absoluta females exhibited a stronger...

Tomato, Lycopersicon esculentum Mill is a vegetable crop of large importance throughout the world. Its annual production accounts for 107 million metric tons with fresh market tomato representing 72 % of the total (FAO, 2002). It is the first horticultural crop in Tunisia with a production area of 25,000 hectares and a total harvest of 1.1 million metric tons (DGPA, 2009) of which nearly 70 % a...

Pepino mosaic virus (PepMV) is a highly infectious potexvirus and a major disease of greenhouse tomato (Solanum lycopersicum) crops worldwide. Damage and economic losses caused by PepMV vary greatly and can be attributed to differential symptomatology caused by different PepMV isolates. Here, we used a custom-designed Affymetrix tomato GeneChip array with probe sets to interrogate over 22,000 t...

Manure is a common source of nitrogen (N) in organic farming. However, manure not always easily available, while the maximum N amount added as animal agriculture restricted by EU regulations. The present study was designed to test whether green manuring with warm-season legume and intercropping cold-season can substitute farm-yard or compost sources greenhouse tomato crops. To this hypothesis, ...

Soil-based root applications and attenuated bacterial strains were evaluated as means to enhance bacteriophage persistence on plants for bacterial disease control. In addition, the systemic nature of phage applied to tomato roots was also evaluated. Several experiments were conducted applying either single phages or phage mixtures specific for Ralstonia solanacearum, Xanthomonas perforans or X....

Chloroplast-to-chromoplast transitions during fruit ripening require massive transformation of the plastid internal membrane structure as the photosynthetic apparatus is disassembled. Early Light-Inducible Proteins (ELIPs) are known to accumulate in chloroplasts during thylakoid biogenesis and under stressful conditions. To determine if ELIP may also play a role in thylakoid disassembly during ...

The present study is based on the investigation of a soil hyphomyces, Paecilomyces lilacinus, an opportunistic bio-control agent. The egg pathogenic fungus Paecilomyces lilacinus is a unique strain with a wide range of activity against the most important plant parasitic nematodes. The aim of this study to evaluate the efficiency of P. lilacinus on parasitic nematodes Meloidogyne javanica on tom...

the reaction of four field tomato cultivars (super strain b, super chief, mobil, and royal) along with two greenhouse cultivars (polaris and es 1002 f1) was evaluated agianst m. javanica under greenhouse conditions. the soil around tomato seedlings (bearing 5-6 leaves) was inoculated with two levels of the nematode inoculum i.e. 1000 and 2000 eggs as well as second stage juveniles per every kg ...

Aim of study: Intensive agriculture impacts physical, chemical, and biological characteristics soil; therefore, the addition organic matter (OM) to soil can have significant implications for crop production. This study investigated impact three management systems on tomato production microbial communities in intensive greenhouse farming.
 Area Province Almería (Spain).
 Material metho...