IPM – Schedule ON MANGO Powdery mildew (Oidium mangiferae) Symptoms: Pathogen attacks the inflorescence, leaves, stalk of inflorescence and young fruits with white superficial powdery growth of fungus resulting in its shedding (Fig 1). When fruit grows further, epidermis of the infected fruits cracks and corky tissues are formed. IPM – Schedule Anthracnose (Colletotrichum gloeosporioides) …
Jowar Shoot Fly Scientific Name: Atherigona soccata Rond. Class & Order: Anthomyidae – Diptera Economic Importance: It is one of the serious pests of sorghum in India. The Pest attacks the crop only in early stage of growth and infestation goes up to 80%. The high yielding hybrids are more susceptible to the attack of …
DISEASE: Common smut (Syn. boil smut, blister smut) PATHOGEN: Ustilago maydis (Syn. Ustilago zeae) HOSTS: Maize (Zea mays), teosinte (Zea mexicana) Taxonomy of ustilago maydis Kingdom :Fungi – champignons, Fungo, fungi Subkingdom: Dikarya Division: Basidiomycota – basidio’s, basidiomycetes, club fungi Subdivision: Ustilaginomycotina Class :Ustilaginomycetes Subclass: Ustilaginomycetidae Order :Ustilaginales Family: Ustilaginaceae Genus: Ustilago (Pers.) Roussel Species :Ustilago maydis (DC.) Corda – …
Fungi constitute the largest number of plant pathogens and are responsible for a range of serious plant diseases. Most vegetable diseases are caused by fungi. They damage plants by killing cells and/or causing plant stress. Sources of fungal infections are infected seed, soil, crop debris, nearby crops and weeds. Fungi are spread by wind and …
Coconut 1.Bud rot(Phytophthora palmivora) Symptoms Palms of all ages are susceptible to the disease, but it is more severe in young palms of 5-20 years. The first indication of the diseases is seen on the central shoot of the tree (spindle). The heart leaf shows discolouration which becomes brown instead of yellowish brown. This is …
Mutation, an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell’s or the virus’s descendants. The genomes of organisms are all composed of DNA, whereas viral genomes can be of DNA or RNA. Mutation in the DNA of a body …