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Takatsuka J.,Tokyo University of Agriculture and Technology | Okuno S.,Tokyo University of Agriculture and Technology | Okuno S.,Arysta LifeScience Corporation | Ishii T.,Tokyo University of Agriculture and Technology | And 2 more authors.
Journal of Invertebrate Pathology

Three entomopoxviruses (EPVs) isolated from diseased Adoxophyes honmai larvae at different localities (Tsukuba, Itsukaichi, and Miyazaki) in Japan were compared for biochemical identity and key parameters of virus fitness, fatal infection, speed of kill, and virus yield. When the structural peptides of occlusion bodies (OBs) and occlusion-derived viral particles were compared using sodium dodecyl sulfate-polyacrylamide gel electrophoresis, no difference in banding patterns was observed. However, DNA restriction endonuclease analysis showed that the three isolates were genotypically different, but many commonly sized DNA fragments were observed. Five tortricid species, A. honmai, Adoxophyes orana, Adoxophyes dubia, Homona magnanima, and Archips insulanus were susceptible to all isolates. No significant differences in the key viral fitness parameters were detected among the isolates in A. orana. However, the Miyazaki isolate had a different effect on H. magnanima; it allowed infected insects to survive longer and develop to a larger size, but had a lower yield of OBs per larva at any given time to death. OB yields per unit cadaver weight for the Miyazaki isolate, which indicate the conversion rate of the insect to virus, were lower over time compared to the other two isolates. The implications for selecting a candidate isolate to control tortricid pests are discussed. © 2010 Elsevier Inc. Source

Przybysz A.,Warsaw University of Life Sciences | Wrochna M.,Warsaw University of Life Sciences | Slowinski A.,Arysta LifeScience Corporation | Gawronska H.,Warsaw University of Life Sciences
Acta Scientiarum Polonorum, Hortorum Cultus

Asahi SL stimulates plant's vital processes like growth and development, affects physiology and biochemistry, what often leads to increased biomass accumulation and yield. However, common is opinion that application of this preparation could be beneficial only, when treated plants are grown under unfavorable conditions. Therefore the aim of this work was the assessment of the stimulatory effect of Asahi SL on Arabi-dopsis thaliana L. and ornamental amaranth plants grown under optimal conditions. Plants treated with Asahi SL were higher and more advanced in development, particularly generative. Biomass accumulation was greater after biostimulator application mainly due to better photosynthetic apparatus efficiency, which was manifested by (i) greater leaf area, (ii) higher total chlorophyll content and (iii) increased intensity of photosynthesis. Effect of Asahi SL on chlorophyll a fluorescence was marginal. Despite of higher transpiration and lowered stomatal resistance the RWC was almost unchanged in biostimulator treated plants what was attributed to increased water uptake. Obtained results clearly showed that Asahi SL applied on plants can also be effective and beneficial when they are grown under optimal conditions. Source

Arysta Lifescience Corporation | Date: 2010-06-08

The invention relates to herbicidal active compound combinations comprising, carbamoyltriazolinones, and herbicidally active compounds, which combinations are suitable for controlling weeds.

Arysta LifeScience Corporation | Date: 2015-07-24

preparations for destroying vermin; fungicides, herbicides.

Arysta LifeScience Corporation | Date: 2009-09-03


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