NEW MEXICO STATE UNIVERSITY
1620 STANDLEY DR ACADEMIC RESH A RM 110
LAS CRUCES,NM 88003-1239
Entomology, Plant Pathology & Weed Science
Sustainability of New Mexico’s agricultural industries, particularly our vegetable and cotton industries in southern New Mexico, relies on a number of factors including efficient management of our water resources, availability of labor, and management of viruses and soilborne diseases and parasites. Weeds impact crop production as an individual pest as well as by influencing the factors described by the industry as critical threats. The basis for the continuing problem caused by weeds in our production systems is that, once established, the seed and propagule bank in the soil maintains the weed populations in crop fields from one year to the next. Thus weeds are a constant presence and pose a constant management problem in our production systems. Previous research findings strongly suggest that work must continue to understand the role weeds play in the complex agroecosystem of southern NM. A primary emphasis of this continuing program must be to develop an understanding of the biology and impact of weeds within the agroecosystem and integrating weed management within the pest complexes identified in NM production systems.
|Knowledge Area (KA)||Subject of Investigation (SOI)||Field of Science (FOS)||Percent|
216 – Integrated Pest Management Systems; 213 – Weeds Affecting Plants;
Subject Of Investigation
2410 – Cross-commodity research–multiple crops;
Field Of Science
1140 – Weed science;
The objectives of this project are: 1) Determine the biology and ecology of weeds identified as components of weed/ nematode, weed/ disease, or weed/ disease/ insect pest complexes in NM agricultural systems. 2) Identify local and regional weed management options in rural and urban environments including irrigation canals.
Objective 1: Research to determine the morphological and genetic relationships among suspected variants of YNS and PNS is needed. Plant populations from selected NM agricultural production fields will be identified based on an initial analysis of morphological characteristics including tuber size and organization on the plant, inflorescence and leaf characteristics. Plants with a range of characteristics will be established with or without SRKN inoculation. In depth morphological characteristics will be measured throughout the life cycle of the plants. In addition, plant tissue will be frozen for genetic characterization. Root-knot nematode reproduction will be assessed for all variants. Other biological characteristics that may be investigated in the laboratory include determination of the effect of temperature and SRKN on nutsedge tuber sprouting and time to emergence and the effect of SRKN on nutsedge photosynthesis and resource allocation (root:shoot). Objective 2: Field research will continue to determine the efficacy of candidate herbicides and other management practices for weed management in crops and irrigation canals as the need and resources allow. All studies will be designed in consultation with faculty from the University Statistics Center and will include appropriate weedy and hand-weeded controls.
|Progress 01/01/13 to 09/30/13
|Progress 01/01/12 to 12/31/12