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Heliothis: Research Methods and Prospects
heftet,
2011,
Engelsk,
ISBN 9781461277613
Heliothis ("Bull worm") species are one of the major pests of field crops worldwide, including sorghum, tomatoes, lettuce, and cotton. Pest problems have intensified over the years …
Advances in Soil Science
heftet,
2011,
Engelsk,
ISBN 9781461295396
The world population in 1930 was 2 billion. It reached 3 billion in 1960, stands at 4. 6 billion today, and is expected to reach 6 billion by the end of the century. The food and …