Q: I have tried to avoid the killing of insects but realise that this is impossible. I therefore consider that the results of such killings could give minor results such as the little sufferings we get from insect bites.
A: Have you tried the path of Metta (Loving-kindness) to avoid killing? This the Buddha did perfectly and we can work towards it too. Am not sure how it can be concluded that such killing can only ‘give minor results such as the little sufferings we get from insect bites’. I see it the other way round. If we generate Metta for even small animals and insects, there are major results – of advancing towards the perfection of Metta, of making it truly an immeasurable, as it is meant to be, for the welfare of all beings great and small, as taught by the Buddha in the Metta Sutta –
Whatever living beings there may be —
feeble or strong (or the seekers and the attained)
long, stout, or of medium size, short, small, large,
those seen or those unseen,
those dwelling far or near,
those who are born as well as those yet to be born —
may all beings have happy minds.
Related Article:
Should Bugs Be Killed Purposely?
https://moonpointer.com/new/2010/03/should-bugs-be-killed-purposely
More natural ways to handle insects:
http://fjbbs.fjnet.com/hb/200906/t20090601_122923.html