Maximum Yield USA 2009 March | Page 58

Aeroponic Technology Versus Premium Organic Soil Cultivation Part IV: Habanero Chile W13 The aeroponic plant in week 12 is stable and healthy showing lush, green growth. Week Thirteen It is physically impossible to scan some parts of the garden for bugs where the canopy is densest without possibly harming the plants themselves. Based on the foliage I can check closely, signs of crop infesting swarms are nowhere present. Sticky traps reveal there are fungus gnats on both sides of the garden, which doesn’t come as a surprise; personally, I’ve never 58 MAXIMUM YIELD USA - March 2009 been able to avoid them in most scenarios. Steinernema and heterorhabditis, two different species of predatory nematodes (beneficial bugs), are added to the soil and aeroponic chamber in hopes of eradicating the majority of the fungus gnats and any media dwelling insects injurious to the garden. To maximize the effectiveness of the nematodes, additional applications are recommended to ensure larvae and eggs will not survive. All in all, it is a great way to control media-born pests. Proven to have powerful effects and response on most types of plants, foliar feeding is an art that I have not included thus far in the trial. My personal preference on the method is not to apply it regularly, unless pests find their way into your garden. Foliar feeds are an excellent approach to virtually instantaneous nutritional delivery, especially if plants are refusing nutrient uptake through the root zone. If gardening under high-intensity discharge lighting, foliar applications are best utilized when the lights are off to avoid burning the plants under the direct influence of magnification through the water. Certain elements are also more penetrating to plants than others, it takes a great deal of trial and error to fine tune foliar fertilizer regiments on specific crops. Many gardeners are also unaware that the stomata and other pores on leaves that contribute to foliar absorption have the highest concentrations on the undersides, not on the top surfaces. Newer leaves and growth shoots are also thought to