How to block some unwanted browsers with .htaccess ?

[miob]

Hello !

i met with interesting kind of matter, i noticed according my server stats i get on site some unknown spiders, and download managers burning my b/w and making fake clicks to sponsors, i wanna block them with .htaccess

is that possible ?

i know block them by IP , but how to setup blocking according web browsers, i have to block e.g. these:

BravoBrian SpiderEngine MarcoPolo
Teleport Pro/1.29
NexTools WebAgent 1.8
HTTrack 3.0x
Konqueror/3.1
Wget/1.8.2

thank you very much

[LordShryku]

Konqueror/3.1? I use Konquerer....