One reason that DDT has stopped being used to combat the boll weevil was of the boll weevil.

One reason that DDT has stopped being used to combat the boll weevil was increased resistance of the boll weevil.

Explanation:

Boll weevil is a pest that feeds on the cotton crop plant. Farmers often use pesticides such as DDT to kill this pest. But farmers observe that in the long run, DDT becomes ineffective against these pests. This is because the boll weevil develops resistance for the pesticide. As organisms which have better qualities to live in an environment survive and pass on their characteristics to their offsprings, hence with the passage of time boll weevils with resistant genes for DDT become abundant in number.

if interdependence implies a two-way dependence, and if each partner is equally dependent on the other for success, then there is an equal commitment to the making the partnership successful. the advantage is sustainability of the relationship, the disadvantage is that decisions are "democratic" and therefore may take longer to reach and more likely to be a compromise (which is not always the best solution). as the interdependence moves away from equality, the decisions become more influenced by the more independent partner. in the extreme the relationship becomes more dictatorial and more like "master-slave". generally the relationship has less commitment in both directions and is more likely to be temporary.

if one generalizes (and one shouldn't), equity partnerships, which is probably what is implied by interdependence, can be slow to progress or change but durable. the extreme alternative, independent-dependent partnerships tend to be efficient but more fragile.

hope this but you will have to site your own evidence. : )