Bookcover of Important insect pests of onion in Sokoto, Nigeria
Booktitle:

Important insect pests of onion in Sokoto, Nigeria

Controlling insect pests of onion

LAP LAMBERT Academic Publishing (2010-11-02 )

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ISBN-13:

978-3-8383-9942-3

ISBN-10:
3838399420
EAN:
9783838399423
Book language:
English
Blurb/Shorttext:
Production of vegetables is a major activity of farmers in northern Nigeria, in dry season.The biggest threats to realization of profit is that of insect pests, particularly thrips on onion. Farmers know the importance of early planting and chemicals, they may however not quantify loss or profit if onion is planted at different months of the year and the best chemical to use and when the two are combined. The book gives information on the yield obtained at monthly sowing of onion, and when this is combined with lambda-cyhalothrin. Results show that Thrips tabaci (Thysanoptera: Thripidae) was the dominant insect pest attacking onion and is capable of reducing bulb yield when planting was late in December. Other minor insect pests are Zonocerus variegatus and Spodoptera exigua. Late onion harbours 600 thrips per plant, with third youngest leaf harbouring the highest population, irrespective of age of the crop.Planting in November and March produced 47.7 and 1.5 tons/ha, respectively. Lambda-cyhalothrin at 745 ml/ha gave yield advantage of 7.16 tons/ha over the untreated. The book is intended for farmers growing onion in tropical countries, particularly in the hot season.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
nasiru ibrahim
Number of pages:
204
Published at:
2010-11-02
Stock:
Available
Category:
Architecture
Price:
79.00 €
Keywords:
Onion thrips in Sokoto, Nigeria

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