Question

does earthworm protect crops

Answer 1

Hey !!  earthworms burrowing in the soil can protect plants

Answer 2

well earthwarm generally doesn't protect the crop from any sort of bacteria of fungal infection virus or any disease but they do a huge work for the crop and As given below

earthworm generally decomposers the biodegradable material like that of Kitchen waste piles of Fruit and Vegetables etc into kind of natural fertilizer and produces humans to the soil which is even beneficial for the crop plants that nourishes them give them all the required macro and micronutrients this prevents or protect the crops from the lack of minerals and Essential elements that it could got from the soil even Earth worms doesn't detect the crop from any kind of insect or other disease but they do a huge a lot of work for the crop

I hope that my answer would help you and if it does kindly mark it as the brainleast answer