questions: asking about the time and process of air layaring of litchi 
 answers: recommended time for layering is may-june(rainy season),select  pencil thicness branch of 1-1.5 yrs old.remove the bark layer up to cambium about 3 inches.put mixture of mud and cowdung on the removed portion .tie with polythene for 1 yr.cut the layer as soon as roots initiates.planting is done in aug-sept.