Enhanced molecular first hyperpolarizabilities with Reichardt's type of zwitterions: a computational study on roles of various monocyclic aromatic bridges.

Context: This work reports structure-property correlations of 27 zwitterions Reichardt's types of zwitterions. Focuses are twofold, to see the (1) impacts of metamerism with Reichardt's vs Brooker's types of zwitterions and (2) impacts of monocyclic aromatic rings as bridges. All the molecules considered here have pyridinium (common acceptor: A) and p-phenylene-dicyanomethanide (common donor: D).

An overview on possible management strategies for coffee white stem borer Chevrolat (Coleoptera: Cerambycidae) in Nepal.

The Coffee White Stem Borer (CWSB) is one of the most dreadful and destructive pests of coffee in Asian nations, causing significant production loss each year. CWSB has a narrow host range, with as their principal host. Once they bore into the stem of , the whole plant must be uprooted.