IntroductionThe importance of sugar in human diet needs nointroduction; it has become a part and parcel ofdaily life. Sugarcane is not only cash crop for thegrowers, but it is main source of white crystal sugarand also provide grower with a very good substituteof sugar in the form of gur.This crop is subjected to many diseases caused byfungi, bacteria, nematodes and viruses. But RedRot of Sugarcane is one of the fungal diseases. Thedisease is the number one problem of sugarcane inBangladesh and entire cane breeding in Bangladeshis geared around this disease. But chemical controlsare not eco-friendly. So, we need to adoptbiological control which is environmentally safe.Now a day scientists are trying to control Red rot ofsugarcane by mean of IDM (Integrated diseaseManagement).
Objectives 1. To get information about the Integrated disease management. 2. To know about the Red rot of sugarcane. 3. To know about the Integrated disease management of Red rot of sugarcane.
Concept of IDMAccording to FAO, “Disease management systems that utilizes allsuitable techniques in a compatible manner to reduce pestpopulations and maintains them at levels bellow those causingeconomic injury.” (Smith and Reynolds 1966). So IDM is a durable, environmentally and economically justifiablesystem in which damage caused by diseases is prevented throughthe use of natural factors which limit the population growth of thisorganism, if needed supplemented with appropriate controlmeasures.In most cases IDM consists of scouting with timely application of acombination of strategies and tactics .These may include siteselection and preparation, utilizing resistant cultivars, alteringplanting practices, modifying the environment by drainage,irrigation, pruning, thinning, shading, etc., and applying pesticides,if necessary.
Red rot of sugarcaneRed rot is one of the major constraints in the profitable cultivationof sugarcane in Bangladesh. This disease drastically retards theyield and considerably deteriorates the juice quantity and qualitythus hitting both the cane growers and millers. Causal Organism : Colletotrichum falcatum Class : Deuteromycetes Order : Melanconiales Family : Melanconiaceae
Symptomatology Fig. The affected sugarcane leaf & stalk showing red rot symptom Fig. The affected sugarcane cane showing red rot symptom
IDM model for management of red rot of sugarcanediseases
conclusionRed rot is one of the oldest known diseases of sugarcane.It occurs in most cane-growing countries. Although itcontinues to be a threat in certain subtropical countries.Midrib lesions are probably the major source of inoculumduring the growing season. Diseased stalks generate agreat deal of inoculum. Dissemination of the inoculumtakes place by wind, rain, and irrigation water.To control these diseases synthetic pesticides are beingused indiscriminately at large scale. Consumption ofpesticides in Bangladesh were 10136.83mt. (BBS, 2003),of which fungicides were 3445.2 mt. This causes seriousenvironment pollution and human health. So, forcontrolling the environmental pollution as well as toincrease the production of sugarcane we should have tofollow Integrated Disease Management system (IDM)which will protect our valuable crop & ultimately bringhappiness to our farmer.