Which of the following describes a Pierce's disease management approach?

• A. Removing vines close to rivers to reduce vector
• B. Chemical insecticides
• C. Introducing a wasp that feeds on sharpshooters
• D. All of the above

Answer: (D)

Managing Pierce's disease centers on cutting the spread of the pathogen by tackling the vectors and using a mix of strategies. Reducing vine exposure to the sharpshooter vectors—such as removing vines near rivers or moist riparian zones—lowers the opportunity for these insects to acquire or transmit the disease. Chemical insecticides can suppress vector populations when used judiciously and at the right times, helping to limit transmission. Introducing a wasp that parasitizes sharpshooter eggs adds a biological control, further reducing vector numbers without relying solely on chemicals. Put together, cultural, chemical, and biological methods form an integrated approach that addresses the disease from multiple angles, which is why all of these components describe a Pierce's disease management strategy.