Garden & Greenhouse August 2017 Issue | Page 20

FEATURESTORY by Eric Gibs Troubleshooting Hydroponic Systems Problems T roubleshooting a hydroponic garden can be a tough task, especially when you come across something strange, or downright de- structive in your previously healthy hydroponic system. Unfortunately most grow- ers encounter problems in a hydroponic garden. Discov- ering something strange or downright destructive in a previously healthy crop frus- trates many experienced and novice hydroponic garden- ers. Troubleshooting these problems can be difficult, especially when there are multiple causes for a single set of symptoms or when more than one issue exists at the same time. The following are some of the common hy- droponic problems together with their solutions. Ethylene, Carbon Dioxide (CO2), and Sulphur Dioxide It’s a common and severe problem for an indoor garden. The enrichment of Carbon Dioxide is a use- ful method of boosting the growth and development of plants. However, overdoing it does not increase yields. The typical dose of Carbon Dioxide is based on several factors including species, previous expo- PROTECT YOUR PLANTS Hard-working Insect and Animal Repellents that also provide moisture loss protection. 800 627 6840 20 sure and plant maturity. CO 2 toxicity in most indoor gar- dens is caused by either bro- ken or inaccurate monitoring equipment. The most com- mon and of course, the first sign of CO 2 toxicity can be mistaken for other problems. It involves leaf damage like yellowing (Chlorosis), curl- ing leaves and necrosis. In some cases, stunted growth is caused by high levels of Carbon Dioxide. It can occur without any other visible in- juries or damage symptoms. Hydroponic-Simplified.com indicates that Ethylene and sulphur dioxide, a damag- ing plant by-product, are generated CO 2 that occurs through burning of a par- ticular fuel is used. It’s advisable you use proper maintenance of CO 2 monitoring equipment like using backup testing tech- niques. Also, use clean sources of Carbon Dioxide and a reasonable level of ventilation to assist in the prevention of ethylene-induced growth problems. Resistance and Super Bugs Another common issue associated with the use of diseases and insect pests controlling sprays is the establishment of resistant disease and super bugs. Most gardeners may discover a particular spray or compound they applied to eliminate insect pests may not be sufficient. As a result, there is an explosion in pest populations. Any compounds that are applied for plant protection should not be used more than two times during a growing season. Repeated use of a similar class of pest and disease control compounds may cause disease and insects developing a genetic resistance to a particular compound and even help develop a new strain of superbug. In fact, as it was stated by Dr. Lynette Morgan from Massey University, New Zealand, most highly effective fungicides and pesticides compounds have been over applied to an extent where they are not effective at all. This leaves hotpepperwax.com www.GardenandGreenhouse.net (Continued on page 24) August 2017