demographic parameters of the pink stem borer, sesamia creticalederer (lepidoptera: noctuidae) were estimatedon its two main host plants, maize and sugarcane. the present studywas conducted under laboratory conditions at 27±1˚c, 50±10% relative humidity (rh %), and a photoperiod of 0:24 (l:d) hour for the larval stage and 16:8 (l:d) hour for the other life stages. the raw data were analyzed bas...

A preliminary s~rvey was conducted to provide an esti~ate of the seventy of red rot (Glomerella tucumanensis) I~ vanous parts of the sugar industry. The incidence of this dIsea~e was greater in the higher altitude areas, with long growing cycles, and where crops were damaged by sesamia or eldana borers. The most severe case observed was 52% of stalks of NC0376 infected in a field at Kranskop. S...

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Sugarcane, Saccharum officinarum L., is one of the most economically important crop of Thailand. It is the main source of sucrose, and is used in sugar and alcohol production. Insect pest complex is the most important limiting factor in sugarcane production. Among the sugarcane insect pest complexes, the sugarcane moth borers complex is considered most important. Chilo infuscatellus Snellen, Ch...

Effect of temperature on development of pink stem borer, Sesamia cretica Lederer, was studied at eight constant temperatures (15, 18, 20.5, 24, 27, 30, 34, and 38°C), a photoperiod of 16:8 (L:D) h, and 50-60% rela\tive humidity. The larvae of pink stem borer were reared on cutting stems of maize. The results showed that temperature had statistically significant effect on developmental times of ...

Background: Lepidopteran and coleopteran species are the most important pests in maize. They can be controlled using genetically modified (GM) crops expressing insecticidal Bacillus thuringiensis (Bt) proteins. The long-term success of this technology demands a pest resistance management. Important information for the successful management of resistance is the baseline susceptibility of the dif...