Plant Protection in Tropical Root and Tuber Crops by P. Parvatha Reddy

By P. Parvatha Reddy

This booklet is a compilation of knowledge on insect/mite/vertebrate pests and fungal/bacterial/viral/mycoplasma/nematode ailments of tropical root and tuber vegetation similar to cassava, candy potato, yams, taro, Amorphophallus, yam bean and tannia. The e-book highlights the distribution, signs and harm, biology, survival and unfold of every pest and describes administration tools. It additionally sheds gentle on diverse green pest administration techniques together with actual, cultural, chemical, organic, host resistance and built-in equipment. The ebook is written in a lucid kind utilizing easy-to-understand language and gives adoptable ideas regarding green regulate measures. It serves as an invaluable reference resource for coverage makers, learn and extension employees, working towards farmers and scholars. the cloth is also used for educating submit graduate classes in country agricultural universities.

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2 Management At the beginning of a local outbreak, severely infested branches should be cut and burnt immediately. It has been controlled by the coccinellid Cryptolaemus montrouzieri together with the syrphid Allograpta obliqua. 1 Distribution The pest is distributed in North, Central, and South America, Antigua, Barbados, British Virgin Islands, Dominica, Dominican Republic, Grenada, Guadeloupe, Jamaica, Martinique, Montserrat, St. Kitts, St. Lucia, St. Vincent, and Trinidad and Tobago. 2 Damage Hornworms cause defoliation in cassava.

Pound the seeds gently in such a way that no oil comes out. Once done, add 50 g of powder in a pail of 1 l of water. Stir well for about 10 min and steep for at least 6 h but not more than 16 h. Stir it again for another 10 min. Strain, add 5 ml of soap, stir well, and spray. Neem Oil and Soap Spray: Add 15 ml of neem oil into 1 l of soapy water. Constantly shake the container or stir the extract while in the process of application to prevent oil from separating. 3. Biological Methods (a) Parasitoids: Encarsia transvena is the most dominant and potential parasitoid of Bemisia tabaci on cassava.

Most of the basic and applied research in the area of crop protection of root and tuber crops has been conducted in the developed countries. Considerably more attention has to be given to IPM/IDM of tropical tuber crops in developing countries. Effective plant quarantine is the first line of defense against the introduction of pests and diseases. It is obviously an important component of IPM/IDM. It requires coordination at national and international levels. With efficient and vigilant quarantine, the introduction and spread of exotic pests which are of serious nature can be avoided or greatly curtailed.

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