Disease identification

Hi Susan, Thank you for your efforts to visiting to Plantix Community and greetings to Nepal! Seems like that your plants might be suffering from Sulfur Deficiency and infested with Thrips attack. Plantix Library is a great hub where everyone can find details on these things and ways on how to correct it. Thank you for your interests in Plantix Community!

yellowing and Pickering of leaves mean yellow mosaic virus

there is nutrient deficiency associated with insect infestation so apply vermi compost or micronutrient mixture & put yellow sticky trap it will revover your plant

je pense que un apport de potassium pour ka turgessen e des cellule et un apport de mg pour ameliorer l'effecacité de photosynthése vont ameliorer becoucoup l'aspet general de la plante

In addition to all the suggestion please don't intercrop capsicum with tomato.It will increase insect and disease occurance.Whatever you have done now plant some garlic or onion to deter the insects.T here are too much weeds.

Thanks Mr Pawar for upvoting.

It looks like Tomato yellow vein mosaic virus...Check presence of trips and white flies...Presence of sulphur and iron deficiency..