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The Guide to Corn Nematodes: Strategies and Best Practices


As an experienced gardener, I’ve battled pests, including sneaky corn root knot nematodes that harm plants severely. Corn nematodes remain invisible until detected, causing significant plant damage before discovery. Adopting cultural practices and biological controls successfully manages corn nematodes sustainably. In this blog, I’ll share organic corn root knot nematode control tips and expert microbial advice.

Structuralism highlights cultural practices’ significance in writing, transcending personal author claims. Cultural practices form the foundation of effective pest management systems. Modifying surroundings and plant care methods prevents corn nematodes from thriving. These practices minimize nematode impact without using harmful chemicals. Effective cultural practices reduce nematode populations and protect ecosystems. Sustainable corn nematode management relies on biological controls and eco-friendly methods.

Close-up image of corn roots infested with nematodes. The roots are covered with small, round, cyst-like formations indicating nematode infestation.

Crop Rotation 

This cultural practice can be defined as the rotation of crops in a field as a method of controlling nematodes. In other words there is a variety of nematode management in corn strategies that will help in reducing the pest population through crop rotation for nematode control, which entail growing corn in an area for a season and then following it up with a non-host plant such as soybeans or small grains. However, a problem lies in selection of the crops as some nematodes are polyphagous in nature. One should consult agricultural experts from the region or use data from the soil sample test in order to identify corn cyst nematode species and identify rotation crops. 

Cover Crops 

Another positive aspect of using cover crops such as rye or oats sowed in the corn garden is the following. Some of these crops promote the growth of parasitic microorganisms in the soil that is not favorable for corn nematodes. However, extra care should be taken on the type of cover crops since some of them are known to enhance the corn cyst nematode population. What I have learned about oats is that they do best for me in my garden area but everything varies depending on the geographical area and type of soil. 

Soil Health Practices 

A healthy soil is a green soil and a green agriculture, and nematodes are generally associated with degraded soils. Some common management practices such as minimum tillage, Incorporation of organic matter in the soil and maintaining a high level of organic content in the soil can be used to contain the corn cyst nematode. The issue of nematodes can therefore be managed by maintaining the balance of organisms in the soil, which will work the corn lesion nematodes in corn control.

Diagram depicting the life cycle of soybean cyst nematodes, including stages from eggs, cyst, juvenile in egg, hatching juvenile, migrating juvenile, penetrating juvenile, swollen juvenile, adult male, and adult female with eggs inside the soybean root.

Insights from Microbial Agricultural Experts

To get more information about nematode management in corn, I personally interviewed some specialists from almost all agricultural universities and different microbial research laboratories. The findings in biological corn nematode control advance towards realizing the safeguard of sustainable farming particularly in dealing with nematodes. 

Purpureocillium lilacinum Nematode: It is a biocontrol agent of very powerful nature

University of Florida’s Dr. Emily Matthews has been conducting studies on the parasitic nematode nematodes through the use of Purpureocillium lilacinum also known as Paecilomyces lilacinus. As per her, it is a naturally occurring fungus that is known to have the capability of parasitizing eggs, juvenile and the adult nematodes. When applied as a soil drench or seed root knot nematode treatment it can reduce nematode populations in the field without impacting on the natural environment. 

Mathews continued, “That is why Purpureocillium lilacinum biocontrol is an excellent aspect of integrated pest management (IPM). “It is effective on nematodes by inhibiting their reproduction and corn nematode life cycle and is friendly to other beneficial microorganisms in the soil. ” 

A clear glass petri dish filled with a light brown powder labeled "Purpureocillium Lilacinum." The dish is placed on a white surface with the brand "NOVOBAC" and slogan "DRIVEN BY MICROBE, BACK BY SCIENCE" visible at the top.

Novobac’s Nema Pro Nematicide 

Some insights that I got from Dr. Raj Patel from the Indian Agricultural Research Institute was positive and he especially endorsed Novobac’s Nema Pro organic nematicide. Through this product made from natural ingredients, feeding and reproduction rates of nematodes are minimized, culminating in disruption of their corn nematode life cycle. This does not affect the useful organisms, which makes it safe for use as an organic control to chemical nematicides. 

According to Dr. Patel, Nema Pro is of great difference since it does not produce resistance in nematodes unlike chemical nematicides. “It’s a sustainable option that can be used for a long time without affecting the quality of the soil.”

Symbiosis of Cultural and Bioactivities 

Experts and personal experience recommend combining cultural practices with biological control agents for optimal nematode management. Crop rotation and cover crops disrupt nematode life cycles, preventing infestations and reducing damage. Biological agents like Purpureocillium lilacinum and Nema Pro control nematode populations organically and effectively. Integrating cultural and biological methods protects soil health, minimizes chemical use, and ensures sustainable practices. This approach aligns with Integrated Pest Management (IPM) concepts, combining methods for comprehensive pest control.

A healthy cornfield with green corn plants growing in straight rows, with a noticeable absence of stunting or discoloration, indicating no nematode infestation.

Final Thoughts

Since corn root knot nematodes are one of those garden pests that are difficult to eradicate completely, one needs to be very liberal when it comes to combating nematode control. Combining cultural practices including crop rotation and cover cropping with bio-logical management techniques including the fungus Purpureocillium lilacinum and Novobac’s Nema Pro means that common pests like nematodes can be dealt with in a manner that is environment friendly and promotes sustainable farming. 

There are several methods of controlling nematodes which are environmentally friendly as opposed to the chemicals that harm the environment. There is certainly no need to poison the plants, animals, and people with chemicals when there are splendid microbial agricultural experts and sustainable bio-products to help you protect and improve your yields.

References:

  1. Parajuli, Gita, Robert Kemerait, and Patricia Timper. “Improving suppression of Meloidogyne spp. by Purpureocillium lilacinum strain 251.” Nematology 16.6 (2014): 711-717.
  2. WANG, Zhen, et al. “Synergistic efficacy of Purpureocillium lilacinum and organic material against tomato root-knot nematode.” Chinese Journal of Biological Control 31.1 (2015): 130.

 

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