Which of the following is a control method for dodder?

The control method for dodder that is most effective includes eradication, the use of dodder-free seed, and biological control.

Eradication is essential when dealing with dodder because this parasitic plant can quickly take over and harm crops by stealing nutrients, leading to reduced yields. Implementing techniques to remove dodder from an area can help prevent its spread and protect other plants.

Using dodder-free seeds is crucial as introducing seeds that do not harbor dodder ensures that the infestations do not begin anew. This proactive approach is key to managing dodder populations.

Biological control can involve introducing natural enemies or competitive plants that challenge the growth of dodder, aiding in keeping its presence in check. This method recognizes the ecological relationships and can be sustainable in the long-term management of dodder.

Other choices, while they may comprise practices useful in broader agricultural contexts, do not specifically target the unique challenges posed by dodder. For example, fertilization, herbicides, and irrigation do not effectively address the parasitic nature of dodder. Pest control and mechanical weeding address pests but may not adequately manage dodder specifically. Similarly, soil nutrients and crop rotation, while beneficial for overall plant health and productivity, do not combat the direct impact