First grow, plant have yellow spots

First time grower here. These plants are 3-4 weeks old, not sure why they are turning yellow. (Outdoor grow)

Soil is organic miracle grow (I know I know) I was just experimenting waiting for my fox farms soil to arrive, my soil has arrived with the 20 gal pots, I was going to transplant them next week. Should I do the soil wash now and get them in the FOX farm soil?

thx for reading. All opinions welcome.

Hard to say without pictures.

Here’s the pics

Check under the leaves with magnification
I see signs of pest

Looks like spider mites. Plant looks like it is covered in them and you can clearly see the webs in the second picture.

Spider mite or aphid damage. I see a lot of people growing stuff in MG fight pests and diseases. Doesn’t help that the soil stays bagged up on a pallet out in the elements for months before they sell it.

What do you mean by soil wash? Rinsing all the soil off the roots? If you're using the Miracle-Gro Performance Organics in the black bag that soil is pretty decent based on the ingredients. Don't wash anything. Transplant the entire root ball when you transplant. But you need to deal with those spider mites before anything else.

OVH said:

Spider mite or aphid damage. I see a lot of people growing stuff in MG fight pests and diseases. Doesn’t help that the soil stays bagged up on a pallet out in the elements for months before they sell it.

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The same thing can be said for most soil. And as far as the elements are concerned, have you seen a soil facility? Everything is outside in the elements. Here's the Fox Farm Facility in California. It's not a clean room with people wearing white robes and booties over their shoes. It's a sprawling outdoor facility with the soil ingredients outside in piles.

xtsho said:

The same thing can be said for most soil. And as far as the elements are concerned, have you seen a soil facility? Everything is outside in the elements. Here's the Fox Farm Facility in California. It's not a clean room with people wearing white robes and booties over their shoes. It's a sprawling outdoor facility with the soil ingredients outside in piles.

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Yes that facility has plenty of access to fresh air. Important for good soil. When soil is bagged and wrapped on pallets it becomes anaerobic and retains moisture for pests to breed.

OVH said:

Yes that facility has plenty of access to fresh air. Important for good soil. When soil is bagged and wrapped on pallets it becomes anaerobic and retains moisture for pests to breed.

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What I meant to convey was that even FFOF and other soils can sit out on pallets for months as well. I've seen it myself. Pallets of Happy Frog, Sunshine mix, etc... sitting outside in the rain and weather.

xtsho said:

What I meant to convey was that even FFOF and other soils can sit out on pallets for months as well. I've seen it myself. Pallets of Happy Frog, Sunshine mix, etc... sitting outside in the rain and weather.

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Gotcha, I get that. I would say their blend would store better given how light it is and the people who sell it seem to care more... at least around me lol. But I do recall in my earlier growing days picking up a bag from a big box store that was from the bottom of the pallet, wet and wreaking of rotten egg smell with little pest flying everywhere when I opened it. Threads like this seems to reinforce my experience as well as conversations with growers around me.