Find the odd set of numbers from the given

Cleaning equipment which is suitable for cleaning ball-shape or oval-shape fruits and vegetables by simultaneously spraying and brushing?

What is the primary and exclusive food of a queen bee throughout her life?

Carbamate and organophosphate insecticide act on which part of insects?

Which organism is the causative agent of Ranikhet disease in fowls? 

In which form of nitrogen is lost from soils?

RRB came into the existence in the year _______.

White eye deficiency is found in which crop?

In which group are sucking mouthparts not found?

Which scientist isolated the bacteria ,Bacillus radicola?