All producers would die out and eventually so would all organisms.
If there were no producers on Earth, such as plants and algae that convert sunlight into energy through photosynthesis, life on Earth would not be sustainable. Producers are at the base of the food chain, providing energy and nutrients to other organisms. Without them, there would be no source of food or energy for consumers, leading to the collapse of ecosystems and the extinction of most organisms.
grass
Consumers would starve very quickly.
Consumers would also die; they depend for producers for food
they would die!
Extinction
eventually all of the consumers that eats those plants (producers) would die off or move to a different habitat. But this will most likely not happen because it would be very hard to permanently destroy all of the producers in that biome.
sunlight
The consumers would die of starvation.
So will everything else.
it will dry up Photosynthesis would not be able to happen.
Sunlight.