Whitefly (Bemisia tabaci) is a plant sap-feeding insect which belongs to the order Homoptera, is a global pest causing significant loss to a wide variety of agricultural commodities. Whiteflies are not true flies. It is related to aphids, scales, and mealybugs. Whiteflies cause damage to plants in two ways. Such as by sucking the sap…
Aphid is the common name for the insects belonging to the superfamily Aphidoidea, within the order Hemiptera. All aphids are small, soft-bodied insects with long, slender mouthparts, and pear-shaped insects with long legs and antennae. Most species of aphids have a pair of tube-like structures called cornicles projecting backward out of their bodies’ hind ends…
Powdery mildew is a disease that affects a wide range of plants, including agronomic crops, fruit, vegetable, and herbaceous and woody ornamentals. It is caused by many different species of fungi. The disease is easy to diagnose as its symptoms are quite distinctive. All powdery mildew fungi require living plant tissue to grow. The important…
Any plant with an edible underground storage organ is known as a root and tuber crops. It can be divided into two parts namely modified root and modified stem. Again modified roots can be divided into two parts; taproots and adventitious roots. The stem is normally divided into nodes and internodes. The node holds one…
According to the disease triangle when these three elements coincide, plant disease will occur. Eliminating just one of them will keep your plant healthy. There are two types of plant diseases: non-infectious and infectious. In non -infective plant diseases there is no pathogen involvement. No, transmit. These diseases are caused by abiotic factors like nutrient…
1. Leaf Disease 2. Panel Disease 3. Root Diseases RUBBER LEAF DISEASES 1. Odium Leaf Disease Causal Organism: Odium heveae The fungus infects leaves at various stages of maturity. Predominantly noticed on newly formed tender flush during the refoliation period. Tender leaves with ashy coating curl, crinkle, and edges roll inwards and fall, leaving the petioles attached…
