Md. Kamaruzzaman ShakilI.D .No. 11Ag.P.Path. JJ 07 MReg. No. 33141

TitleTitle

IDM MODEL OF RED ROT OF SUGERCANE

IntroductionIntroduction The importance of sugar in human diet needs no The importance of sugar in human diet needs no introduction; it has become a part and parcel of introduction; it has become a part and parcel of daily life. Sugarcane is not only cash crop for the daily life. Sugarcane is not only cash crop for the growers, but it is main source of white crystal sugar growers, but it is main source of white crystal sugar and also provide grower with a very good substitute and also provide grower with a very good substitute of sugar in the form of 'gur'.of sugar in the form of 'gur'.

This crop is subjected to many diseases caused by This crop is subjected to many diseases caused by fungi, bacteria, nematodes and viruses. But Red Rot fungi, bacteria, nematodes and viruses. But Red Rot of Sugarcane is one of the fungal diseases. The of Sugarcane is one of the fungal diseases. The disease is the number one problem of sugarcane in disease is the number one problem of sugarcane in Bangladesh and entire cane breeding in Bangladesh Bangladesh and entire cane breeding in Bangladesh is geared around this disease. But chemical controls is geared around this disease. But chemical controls are not eco-friendly. So, we need to adopt biological are not eco-friendly. So, we need to adopt biological control which is environmentally safe. Now a day control which is environmentally safe. Now a day scientists are trying to control Red rot of sugarcane scientists are trying to control Red rot of sugarcane by mean of IDM (Integrated disease Management).by mean of IDM (Integrated disease Management).

ObjectivesObjectives

1.1. To get information about the To get information about the Integrated disease management.Integrated disease management.

2.2. To know about the Red rot of To know about the Red rot of sugarcane.sugarcane.

3.3. To know about the Integrated To know about the Integrated disease management of Red rot of disease management of Red rot of sugarcane.sugarcane.

Concept of IDMConcept of IDMAccording to FAO, “Disease management systems that utilizes all suitable techniques in a compatible manner to reduce pest populations and maintains them at levels bellow those causing economic injury.” (Smith and Reynolds 1966). So IDM is a durable, environmentally and economically justifiable system in which damage caused by diseases is prevented through the use of natural factors which limit the population growth of this organism, if needed supplemented with appropriate control measures.In most cases IDM consists of scouting with timely application of a combination of strategies and tactics .These may include site selection and preparation, utilizing resistant cultivars, altering planting practices, modifying the environment by drainage, irrigation, pruning, thinning, shading, etc., and applying pesticides, if necessary.

Red rot of sugarcaneRed rot of sugarcaneRed rot is one of the major constraints in the profitable cultivation of sugarcane in Bangladesh. This disease drastically retards the yield and considerably deteriorates the juice quantity and quality thus hitting both the cane growers and millers.

Causal Organism : Colletotrichum falcatum Class : Deuteromycetes Order : Melanconiales Family : Melanconiaceae

SymptomatologySymptomatology

Fig. The affected sugarcane cane showing red rot symptom

Fig. The affected sugarcane leaf & stalk showing red rot symptom

IDM model for management of red rot of sugarcane IDM model for management of red rot of sugarcane diseasesdiseases

conclusion conclusion Red rot is one of the oldest known diseases of sugarcane. It occurs in most cane-growing countries. Although it continues to be a threat in certain subtropical countries.Midrib lesions are probably the major source of inoculum during the growing season. Diseased stalks generate a great deal of inoculum. Dissemination of the inoculum takes place by wind, rain, and irrigation water. To control these diseases synthetic pesticides are being used indiscriminately at large scale. Consumption of pesticides in Bangladesh were 10136.83mt. (BBS, 2003), of which fungicides were 3445.2 mt. This causes serious environment pollution and human health. So, for controlling the environmental pollution as well as to increase the production of sugarcane we should have to follow Integrated Disease Management system (IDM) which will protect our valuable crop & ultimately bring happiness to our farmer.