Silkworm Diseases
Silkworm Diseases Diseases: The silkworm, Bombyx mori that has been under domestication since time immemorial is prone to the attack of a number of diseases. Among the diseases pebrine, grasserie, …
Zoology
zoology, a branch of biology that studies the members of the animal kingdom and animal life in general. It includes both the inquiry into individual animals and their constituent parts, even to the molecular level, and the inquiry into animal populations, entire faunas, and the relationships of animals to each other, to plants, and to the nonliving environment. Though this wide range of studies results in some isolation of specialties within zoology, the conceptual integration in the contemporary study of living things that has occurred in recent years emphasizes the structural and functional unity of life rather than its diversity.
Types of Silkworms
Types of Silkworms There are four kinds of natural silk which are commercially known and produced. Out of them, mulberry silk is most important and it contributes about 95% of …
Jowar Stem Borer: Overview
Jowar Stem Borer Class – Insecta Order – Lepidoptera Family – Pyralidae Genus – Chilo Species – zonellus = partellus (Swinhoe) Jowar is Maharashtra’s most important staple food crop. Aside from being a staple …
Red Cotton Bug: Identification, Life cycle and Control measures
Red Cotton Bug Class – Insecta Order – Hemiptera Family – Pyrrhocoridae Genus – Dysdercus Species – cingulatus = koenigii (Fab) The red cotton bug is widespread; it is a minor pest in northern …
Integrated Pest Management (IPM)
Integrated Pest Management Integrated Pest Control is defined as a pest management system that in the context of the associated environment and the population dynamics of the pest species, utilizes …
Bee Behaviour and Communication
Bee Behaviour Swarming: The phenomenon of leaving off the colony by the queen and other members is known as swarming. It is taking place towards the end of spring or …
Life Cycle, Colony Organization and Division of Labour of Honey Bee
Life Cycle of Honey Bee The honey bees shows complete metamorphosis and thus are termed as holometabolan insects. The queen is functional female. Nuptial Flight or Marriage Flight: The virgin …
Introduction and Scope of Pests
The influence of insects on human life ‘destructive and beneficial’ can be traced back to prehistoric day and till now. A constant struggle is going on between men and insects …
Classification of Pests
Insect pests are capable of feeding on almost all types of organic matter. The insects can cause damage to crop plants in the field, fruit plants, stored food and even …
Harvesting of Mulberry
Harvesting of Mulberry Introduction It is possible to harvest leaves 5-6 times a year. Generally, the leaf yield is more in the first three harvests during the rainy season and …
Cultivation of Mulberry
Cultivation of Mulberry 1. Selection of Mulberry Variety: Cultivation and harvesting of mulberry plants are called Moriculture. There are over 20 species of mulberry (Family-Moraceae) of which four are more …
Fish Preservation Techniques
Fish Preservation Techniques A large section of the Indian population uses fish as food. All over the world, fish and fish products are consumed by people. Fish is an easily …
Bombyx mori: External Morphology and Life Cycle
External Morphology of Bombyx mori The adult moth of Bombyx mori L. is about 25.00 mm long with a wingspan of 40.00 to 50.00 mm from side to side and …
Mammalian Circulatory System
Arteries The arteries are efferent vessels that take blood to the capillary beds away from the nucleus. Both vessels, except the pulmonary arteries, contain oxygenated blood in adults: deoxygenated blood …
Submandibular & Sublingual Gland
Salivary Gland In the submandibular area or the floor of the mouth, two of the three main salivary glands are located: the submandibular and sublingual glands.On the side of the …
Fish Buoyancy
Fish Buoyancy Principle If a swimming animal is heavier than water, part of its energy is expended in keeping afloat and only part for forwarding locomotion. If an animal has …
Reproduction,Gametogenesis And Fertilization
Reproduction,Gametogenesis And Fertilization ▶Asexual Reproduction In asexual reproduction the parent divides, fragments or buds to give rise to a varying number of genetically identical offspring. This ‘natural cloning’ is the …
Metamorphosis
Metamorphosis It is the transformation from one to another morphological and physiological form of an animal during its life cycle; true metamorphosis is concerned with preparation for life in a …
Theories Of Aging
Theories Of Aging ▶Nature versus Nurture Theories of aging can be divided into those implying a genetic program and those implying that aging is environmentally determined: nature versus nurture. ▶Genetic …