Maximum Yield USA 2014 February | Page 34

MAX FACTS growing tips, news and trivia Vertical Vermiponics Hydroponics, aquaponics, windowfarming, which allows urban folks to grow food vertically using their home windows, and vermicomposting (creating compost with worms) have all become familiar ideas to many green-minded people. But what about adding worms to the windowfarming equation? Professor Ken Rinaldo, director of the art and technology department at Ohio State University’s School of Architecture, has combined aspects of these practices in an experimental research project called Cascading Gardens. The project employs what is called vermiponics, in which worm waste is used to fertilize veggies. Suspended in specially-developed grow bags arranged in vertical rows, red wriggler worms are the crux of the system, adding rich nutrients to the process. Grow bags are made out of felt, and the system can be used indoors and out, and in wet or dry climates. (Source: treehugger.com) 32 Maximum Yield USA  |  February 2014 Sweet Potato Weevils The sweet potato weevil is the most harmful pest of sweet potato around the world. Because the larval period is spent within vines or tubers, and the adults are nocturnal, chemical control is often ineffective. Mass trapping using synthetic pheromones has suppressed populations in several countries, but it has not reduced the damage greatly. A new study suggests the color of traps may affect their usefulness. “Sweet potato weevils responded to pheromone-baited traps of different colors differently in the field and indoors,” says Dr. Gadi V.P Reddy . from Montana State University. “In the field, sweet potato weevils preferred red, and particularly light red, over the other colors, but indoors, green traps were favored. We h ave no explanation for the difference. Further studies focusing on why insect behavior changes from outdoors to indoors will be required to find out.” (Source: sciencedaily.com)