Hello how do I know these compounds are attractive or repellent to insects?

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Himmat Singh

if have these compounds you can conduct repellency assay using several experiments outdoors in cages etc.

if you dont have these then you need to check them in the literature about the constitution of these compounds and attractant properties

Sergey Viktorovich Pushkin

Dear Faisal Nasser

From your list of substances, repellents are exactly:

Tri chloroethene

camphor.

tetrachloroethane..

dibromochloroethane..

chlorobenzene...

1,3-dichlorobenzene..

Regards, Sergey

Anil Kumar

For more details, follow below mentioned link

https://apps.who.int/iris/bitstream/handle/10665/78142/9789241505024_eng.pdf;jsessionid=14B571383EA2B84A3B7C10E8B4C0A399?sequence=1

Faisal Nasser

thank you very much