Introduction
Wheat (Triticum aestivum L) is the most widely grown cereal crop in the
world, covering about 237 million hectares annually, accounting for a
total of 420 million tones [1],and for
at least one-fifth of man’s calorie intake
[2]. In Pakistan the wheat is an
important grain crop which is being grown. It is cultivated during
winter cropping season after cultivation of summer crops rice and maize.
Pakistan Agriculture Research Council
[3]. Published a report that country
consumes 120 kg of wheat per capita per year. Wheat is cultivated by All
Provinces of Pakistan, therefore Pakistan in listed in top 10 wheat
producing states of the globe, but of increasing population of the
country still there is problem to complete the grain prerequisite. Yield
and quality of grains of the wheat crop has also many pests which damage
it and are responsible for great decrease in yields. Damage to crop is
caused by the several species of insects, including various kinds of
diseases the weather conditions may also be responsible for yield losses
in wheat. Feeding inside the stem or on the leaves of the plant various
species of insects have been discovered. Biodiversity is the changes in
life, but also presence of same kind of organisms in agroecosystems,
generally called as biodiversity[4].
Leafhoppers have a very important place among the insect biogenesis that
damage to winter wheat agroecosystems. Worldwide Leafhoppers include
about 20000 phytophagous distributed species. Most leafhoppers
(Javesella pellucida, Psammotettix alienus, Macrosteles laevis) found on
cereals and the first one is a vector for viruses
[5]. For the control of insect pests
of wheat naturally occurring carnivorous insects are
responsible[6]. Dangerously damaging
pests of wheat crop are Aphids [7]. To
know the yields losses caused by Rhopalosiphum padi Studies have been
done (L.), Metopolophium dirhodum (Wlk.) and Sitobion avenae (Fab.)
[8].By thirps to wheat crops
Significant damages have been caused, the development of wheat nearly
overlaps thirps life cycle [8]. A
strong background can be given by accurate identification of insect
species can give and to know the phylogenetic patterns, diversity and
the process of evolution and extermination among and between various
species. Proper identification of species permits for comparison or
expansion of more ancient research works. Due to large number of insect
pest invading wheat crop and causing losses in production, it was felt
necessary to observe the current insect pest status on wheat crop in
district Haripur, growers to diagnose insect pests and find its solution
to increase their crop yields the available knowledge will be helpful
for the wheat cultivators.