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Rachelle Rehberg

Contact Info

Room W002, Plant Science Building


Born and raised in Tri-Cities, WA, I grew up in the hot, dry desert lands of southeastern Washington. This however, did not stop my family from traveling to enjoy the many beautiful sights and activities Washington State has to offer. I am an avid skier and love going boating and camping. I also thoroughly enjoy collecting antiques, singing, and helping others.

Both my twin and I love math and scienceā€¦a passion that led us to attend rival universities! I enjoyed developing my foundation of chemistry while at Washington State University in the quaint little town of Pullman. During my time at WSU I made many friendships, lasting memories, and become involved in organizations that have helped shape the woman I am today.

I am very excited to further my education and expand on research opportunities in the Borch group here at CSU! I am intrigued with combining my strength in analytical chemistry with my interests in agriculture, environmental science, and their applications. The Borch group provides me with opportunities to explore my interests and conduct research with an interdisciplinary team!

Project Summary

Citrus Greening

Citrus greening, or Huanglongbing (HLB) disease, causes citrus trees to produce smaller, green-colored oranges that often fall off the tree. Infected trees also show symptoms in their leaves and weakened root systems. There is no cure for citrus greening, thus many infected groves are often abandoned. Infected psyllid insects spread HLB disease to the trees while sucking on their leaves.

Our interdisciplinary team here at CSU strives to determine the best management strategies to establish a sustainable citrus production. My research focuses on developing analytical methods to quantify the spatial distribution of insecticides as well as developing cheap sorbents for characterization of pesticide fate and transport within the citrus groves in Florida. We will also elucidate transformation kinetics and degradation pathways of pesticides applied by airplanes to the citrus groves. Lastly, we will determine pesticide resistance within groves impacted by citrus greening disease.


For more details about the research conducted in the Borch group please click here.

Recent Publications



For more publications in the Borch group please click here.


Previous Institutions

Graduate: PhD Candidate, Colorado State University

Undergraduate: B.S. Chemistry, Washington State University

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