Tomatoes (<i>Solanum lycopersicum</i>) are susceptible to a wide array of arthropod pests. Most commercially available tomatoes do not have pest resistance and rely of the use of pesticides. In protected culture, using biological control agents (beneficial insects) are critical to integrated pest management, especially to control the two major pests: whiteflies and aphids. Our first step has been to synthesize specific acyl-sugars (derived from <i>Solanum pennellii) </i>in order to ultimately be able to test their effects on beneficial insects and biological controls in the greenhouse. The focus of this research was testing the behavior of adult lady beetles in a choice assay with five OMRI approved insecticides, a positive control (DEET) and negative control (acetone), as well as the synthesized acyl sugars from tis project to ascertain if there is any associated repellence or irritability characteristics from the insecticides versus the solvent (acetone). A ViewPointä tracking system was used with a single adult released in the untreated center of a Plexiglas arena with two adjacent areas for choice (treated and control). Collected data included ambulatory time, walking distance, velocity, and proportion of time spent in each area for 10 minutes. The target compound was investigated from a retrosynthetic perspective, which allowed for the development of a synthetic route. In retrosynthesis, a synthetic route is created from starting at the end and working towards the beginning. The target compound had positions 2, 3, and 4 esterified. In order to selectively add these acyl groups, the anomeric and primary positions had to be protected first. Once these positions are blocked, the acyl groups can be added with ease. The last two steps are then to remove the protecting groups, which yields the final product.

Acylated glucose for integrated pest management in greenhouse production of tomatoes

2019 Fall National Meeting

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