Input (grade 11): Natural insect repellent methods like companion planting (i.e. planting marigolds or other naturally pest-repelling plants) become very efficient in a close space and thus, pesticides are not necessary.
Output (grade 11): Natural insect repellent methods like companion planting (i.e. planting marigolds or other naturally pest - repelling plants) become very efficient in a close space so pesticides are not necessary.