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No, the blood meal has been infected by insects. I would return it, and get money back or replacement.

There are many possible diseases that can attack tomatoes. Leaves turning white could well be powdery mildew: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
Here's another article that tells about a number of things to watch for: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-plant-problems.htm
The only way to be sure what is affecting your plants is to take samples of leaf, stem, and soil to the local Extension Service. This link will help you locate one: https://www.gardeningknowhow.com/extension-search/

If you spray the tomato plants in the evening, it will have the least impact on bees. That being said, tomatoes are really not all that dependent on bee pollination. They are mostly wind pollinated. So, while you should be aware of bees and not harm them, your crop of tomatoes is not dependent on them.

Yellowing can happen for many reasons. First check should be is the plant getting enough water? This article will go over some other reasons for yellowing leaves:
https://www.gardeningknowhow.com/edible/vegetables/tomato/yellow-tomato-leaves.htm