Tesfu Fekensa — новинки

Why insects are the most successful and most diversified of all creatures? What is their economic importance to our welfare? Do they have any detrimental effect? What type’s external features come to your mind while you hear the word arthropod? Which external feature(s) do you think that is responsible for their interaction with their surrounding environment? Does the classification scheme for arthropods vary from other animals? What are the most common and recently used insect orders identification keys? This work briefly elaborates all the mentioned questions and more.

Estimates of the worldwide post-harvest insect pests’ loss of foodstuffs (especially stored grains) may amount to 5-10% in the temperate zone and 20-30% in the tropical zone. Like wise, in Ethiopia loss of stored produce reached up to 20-30 %. Such damage may reach 10 to 40% in countries where modern storage technologies have not been introduced. Which groups of insects harboring the most economically important groups? Why Semiochemicals are preferable to conventional pesticides? What does it mean primary and secondary pest? Why Semio-chemicals are the promising alternative that could be used to control insect pests by behavioural manipulation: in the form of sex pheromone lures for monitoring, mass trapping, attracting and killing, mating disruption of insect pests? This work briefly responds all the mentioned questions and more.

What is the remedy in order to feed the world’s projected population in 2050 – some nine billion people, up from 7 billion today? How grain legumes are significant nutritionally, economically and ecologically? Why biopesticide are preferred to conventional pesticides? The investigation of the efficacy of Parthenium hysterophorus powder against Callosobruchus chinensis on Chickpea solves the above mentioned questions and briefs more. It also recommends further research works to get benefited from biopesticide.