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Cover Hurley HC Working Paper

Weather Risk: How Does It Change the Yield Benefits of Nitrogen Fertilizer and Improved Maize Varieties in Sub-Saharan Africa?

Publication Date: October, 2016

The purpose of this research was to explore how weather risk affects the value of nitrogen fertilizer use and improved seed variety adoption to Sub-Saharan African (SSA) maize farmers.

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"The Potential Global Distribution of Chilo partellus, Including Consideration of Irrigation and Cropping Patterns"

Publication Date: August, 2016

Chilo partellus is a major crop pest in Asia and Africa, and has recently spread to the Mediterranean region. Knowledge of its potential distribution can inform biosecurity policies aimed at limiting its further spread and efforts to reduce its impact in areas that are already invaded.

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Puccinia triticina: (Wheat Leaf Rust)

Publication Date: June, 2016

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution

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Mononychellus tanajoa cover

Mononychellus tanajoa: (Cassava Green Mite)

Publication Date: April, 2016

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution

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Fusarium graminearum: (Fusarium Head Blight)

Publication Date: March, 2016

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution, Potential Impact in Africa

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Cover Puccinia grammis

Puccinia graminis: (Wheat Stem Rust)

Publication Date: August, 2015

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution

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Puccinia striiformis

Puccinia striiformis: (Wheat Stripe Rust)

Publication Date: April, 2015

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution

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The Potential Distribution of Invading Helicoverpa Armigera in North America: Is It Just a Matter of Time?

Publication Date: March, 2015

Helicoverpa armigera has recently invaded South and Central America, and appears to be spreading rapidly. We update a previously developed potential distribution model to highlight the global invasion threat, with emphasis on the risks to the United States.

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Moving Matters: The Effect of Location on Crop Production

Publication Date: March, 2015

Our new spatial output indexes show that 16 to 21 percent of the increase in U.S. corn output over the 128 years beginning in 1879 was attributable to spatial movement in production.

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Busseola fusca

Busseola fusca (African Stem Borer)

Publication Date: September, 2014

Section Titles: Background Information, Introduction, Known Distribution, Description and Biology, Host Crops and Other Plants, Potential Distribution

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