Houseplant Bugs

I have a small hydrangea qui's was to do well to the interior for about a year. It began blooming and grow more leaves if I transferred it to a lightly bigger jar and to more of additional ground to fill the space. After some weeks, certain of the leaves and the new flower began turning the chestnut. I noticed the extremely small insects of white one crawling on the ground. Also, little flies of the insects were around the piece his in. Which are things of theses and how I am ridded of them without injuring my plant?

Take the plant outside and gives him a washing with the not waterhose so hard that you break the foliage but the insect sound as whitefly or the young aphids.. that should explode them of.. or you could sterilize it with the savon of uniform dish then rinasage ...you wanna explodes the plant lasts but does not too last with water. ....attention to the foliage undeside