Agrotis exclamationis, Heart and dart moth
Agrotis exclamationis, known as the heart and dart moth, affects a great number of staple European vegetables.
As a major pest of outdoors environments, the heart and dart moth, Agrotis exclamationis, can damage both solanaceaeous crops, root vegetables, as well as maize and cereal crops. It is common throughout Eastern and Central Europe, destroying the livelihood and sustenance of growers and consumers alike.
Inhibitors of Sexual Attraction in the Moth Agrotis Exclamationis
The sex-attractant system of the dart moth Agrotis exclamationis (L.) (Noctuidae) was re-investigated with electrophysiological and field trapping tests. The identified pheromone components (Z)-5-tetradecenyl acetate and (Z)-9-tetradecenyl acetate elicited maximum trap captures when combined in a Z5-/Z9-mixture ratio of between 100/10 and 100/20, in contrast to an earlier reported mixture optimum of 100/5. Each compound activated a particular type of receptor cell located in the male antennal hair sensilla. Three further cell types discovered in these sensilla Z)-7-dodecenyl acetate and (Z)-7- and (Z)-l1-tetradecenyl acetate. These latter compounds did not show attractive or synergistic properties in field trapping tests but rather reduced captures when added to the binary pheromone blend as a third component. The biological functions of these three “attraction-inhibitors™ remain unidentified.
Inhibitors of Sexual Attraction in the Moth Agrotis Exclamationis. Available from: https://www.researchgate.net/publication/290046073_Inhibitors_of_Sexual_Attraction_in_the_Moth_Agrotis_Exclamationis [accessed Jul 3, 2017].Read more
THE EFFECTIVENESS OF CATCHING CUTWORM (LEPIDOPTERA: NOCTUIDAE: NOCTUINAE) (= AGROTINAE) IN PHEROMONE TRAPS AND LIGHT TRAPS, FOR SHORT-TERM FORECASTING
In agricultural plant protection, signaling that there is
a pest to crops has been rarely used, except in respect of
a few phytophage species (Walczak et al. 2010). In order
to determine the optimal time for controlling agrophages,
first the appropriate monitoring of the agrophages must
be conducted (Walczak 1999). Such monitoring involves
systematic observation to determine the severity of the
disease or the stage of development and the population
size of the pests. If the threshold of economic harmfulness
is exceeded, the decision must be made about whether
or not to start chemical treatment (Walczak 2007, 2008).