HORTICULTURE

Detailed explanation-1: -Instar is the name given to the developmental stage of an arthropod between moults. For example, after hatching from the egg and insect is said to be in its first instar. When the insect moults it is then a second instar and so on. Instar can be used for insects undergoing complete and incomplete metamorphosis.

Detailed explanation-2: -Larva: The immature form (between egg and pupa) of insects with complete metamorphosis. (Stages between molts of the exoskeleton are called instars).

Detailed explanation-3: -The larva, or maggot, is the main feeding stage of the fly. On hatching, first-instar larvae are roughly 2 mm long, growing to about 5 mm before shedding their skin. The second instar larvae grow to around 10 mm before they shed their skins to become third-instar larvae.

Detailed explanation-4: -During each successive growing stage (instar) the nymph begins to resemble the adult more closely. In contrast to nymphs that develop on land, the aquatic young of dragonflies, stoneflies, and mayflies are sometimes called naiads. Their metamorphosis is more complicated, involving a change to a different environment.