Boilergardener
Garden Ornament
Seedcorn maggots I had this May. You are correct on emergence speed. I plant May15 weekend every year and this year it was a cooler weather for that weekend. They didn't emerge as quickly as normal years. I havent really had issues until about 2 years ago. And that garden has been around for years. Weird stuff.i'm pretty sure i've never seen the sort of damage done by cornseed maggots.
most of my gardens are fairly heavy clay soils and i'm not sure if that makes a difference or not for them.
maybe because i do very little cool weather planting but also perhaps because for the most part when i'm done with a garden all of the garden debris is usually buried down at least four to six inches. rarely is anything left on the surface. it actually is not due to a preference of mine as i would much rather leave some mulches on the surface but Mom considers it untidy looking so for her a cleaned up garden in the fall looks bare dirt with nary a twig or leave to be seen.
i have had some plantings not make it due to poor seed quality or predation from various critters but nothing like the pictures i've just been looking at.
i don't use any mulches, ashes or coffee grounds when planting and rarely have green manures available or any other things. what i do tend to use for fertilizer is the worms and worm compost but that is usually buried 4 to 6 inches deep or more (and i've found that the beans don't sometimes do well with it the first season so it works better when the beans are rotated into a garden where the worm compost was used the previous few years).