Question

Milk vine weed is being eradicated from citrus with the help of which of the following herbicide?

• A. 2, 4 - D
  
• B. Phytophthora palmivora
• C. Pyrethrin
• D. None of the above

Answer 1

The correct option is B Phytophthora palmivora

Phytophthora palmivora has been used as an post emergent mycoherbicide to control milkweed or strangler vine, a major problem on citrus in south Florida. It controls the weed by a root and stem rot and girdling the stems of infested plant near the soil surface, resulting in the death of seedlings and the older plants.

Thus, the correct answer is option B.