Download Coffee pests, diseases and their management by Jim M Waller, M Bigger, Rory J Hillocks PDF

By Jim M Waller, M Bigger, Rory J Hillocks

Expense cave in and oversupply have made espresso a high-profile crop lately: by no means has effective creation and crop safeguard been extra very important for lowering charges and extending caliber. choked with illustrations, this booklet covers the origins, botany, agroecology and around the globe construction records of espresso, and the insect pests, plant pathogens, nematodes and nutrient deficiencies that afflict it. With emphasis on built-in crop administration, this e-book stories keep watch over measures appropriate for any espresso pest or affliction and should let agriculturists to layout and enforce sustainable pest administration systems.

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Extra info for Coffee pests, diseases and their management

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The earliest reports of white stem borer came from South Africa in the late 1860s (Schoeman, 1995). 1000 m) to higher elevations (up to 1600 m), with the expansion of coffee cultivation between the two world wars (Tapley, 1960). The lack of consistent documented observation in any one country during the 20th century makes it difficult to follow the pattern of decline and outbreak of white stem borer. It is clear from the report by Tapley (1960) that the problem became severe in Tanzania during the 1950s, due in part to the breakdown of control measures during the Second World War.

In general, higher costs of the larger, more intensive, production systems are offset by greater yields, whereas the lower-input costs of smallholder coffee result in a lower break-even point but lower overall yields. Harvesting and general labour costs form the greatest proportion of production costs, especially for smallholders, and the costs of crop protection measures – especially in Africa, where spraying against both rust and coffee berry disease may be required for arabica production – are also large.

Other groups, such as the Cossidae and Bostrichidae, make use of the minute quantities of sugars, proteins and starches to be found in xylem and reject the lignin and cellulose. This results in very extensive tunnels and the production of a large quantity of waste material. Still others, such as some Scolytidae, depend on fungi to break down the lignin and cellulose for them, and they then feed off the fungal spores and mycelia. The spores that initiate the fungal colonies are carried on the bodies of the beetles when they excavate their tunnel.

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