Last week the question was: What are these?
These are the eggs of the spined soldier bug. These were found on the leaf of a soybean plant this past summer. This is a magnified view. Spined soldier bugs are predatory insects in the stinkbug family, Pentatomidae. They are excellent predators of a number of insects including caterpillars, which we see frequently in soybeans, corn, peanuts, cotton and vegetables. Take a look at this UF page for more info.
Here is this weeks question: What is going on with these tobacco seedlings?
Here is a close up of the leaves. Notice the symptoms on the cotyledons.