To get rid spider-mites the best option is use insect killing spray which does not affect or poisoned the crops.
Mostly when crops are ready the chances of be poisoned are low and spray can be effective.
In this case when leafs are becoming yellow, there is need of
good quality pest spray. With proper use of such spray the
leafs grow well and started to become green with the
passage of time.
Yellow leaf are symbol of attach of insects on the plants.
There is need of remove the insects through such such
insect killer which don't disturb the plants and keep them
grow well in future.
When growing vegetables outside, it provides good result for growth aspect.
But problem arises when some attack of the crops by any insect.
The use of well known pest spray worked better for this purpose.