Newb here trying to read these plants

Well I might just be paranoid, but I don't like the way these plants are looking. The first few appear to have heat damage, so I moved the light up and adjusted the fan for more are movement. The others have me a little more concerned I am hoping that I did not get mites introduced into my garden, but after comparing the pics I took with those I found google I am even more concerned.

First off could I get some help with a positive diagnosis from these pics, and maybe even a suggestion or two about how to deal with it.
Plant 1: suspected heat damage

Plant 2: suspected heat damage

Plant 3: mites??

Plant 4: mites??

look under the leaves for mites, and look for tiny little webs - they are a sure-sign of spider mites. I'd say you are right in thinking the first too pics are a bit hot, but not very,

thatdjsnow said:

look under the leaves for mites, and look for tiny little webs - they are a sure-sign of spider mites. I'd say you are right in thinking the first too pics are a bit hot, but not very,

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KK, the last two plants have a second pic of the under side of the leaves there are things there but I can't tell if they are mites, can you tell from the pic? I definetly do not see webs but I do see leaf damage on the last two plants.

...Looks like mites. Do you have a mag to get a better look? Yellow spots on the upside and black dots on the underside is a good sign of spidermites.

trichlone fiend said:

...Looks like mites. Do you have a mag to get a better look? Yellow spots on the upside and black dots on the underside is a good sign of spidermites.

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I don't actually that why I busted out the macro lens hoping that would do it, but you see as good as it does. I heard that volck oil is pretty effective without damaging the plants, would that take care of them??

spider mites,or white flys,either way they will suck the ability for the plant to photosynthise properly,,,,,B.T. MIGHT TAKE MULTIPLE APPLICATIONS,spray, wait two days,and hit again,should be ok by the third application,one more tip,,,wet betty,but only after pests are gone,they love the suffacant!