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[av_heading heading=’Biopesticide can control Fusarium wilt in crops’ tag=’h3′ style=’blockquote modern-quote’ size=” subheading_active=’subheading_below’ subheading_size=’15’ padding=’10’ color=” custom_font=”]
BY JULIO P. YAP JR.
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MOST farmers in the country produce tomato, eggplant, and hot pepper. However, their production has been noted to be declining for the past several years.
Among the reasons accounted for the cutback is the damage caused by insect pests and diseases, the number of strong typhoons that hit the various parts of the country, and the occurrence of Fusarium wilt.
But through the adoption of technologies, stakeholders are hoping that their farms can be rehabilitated and consequently, ensure good harvest and income.
WiltCure, a biopesticide, can effectively control Fusarium wilt in tomato, eggplant, and hot pepper, resulting in more vigorous growth and higher yield.
This was the key finding of the project entitled, Callus and microbe co-culture as a novel source of biopesticides against major agricultural pests and diseases.
The project is funded by the Department of Science and Technology (DOST) and monitored by the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development of the DOST (PCAARRD).
Fusarium wilt is a major disease in many solanaceous crops.
It is caused by Fusarium oxysporum, a soil-borne pathogen.
It is conventionally controlled by using chemical pesticides.
However, the prolonged use of synthetic chemicals reportedly degrades natural soil nutrients and contaminates the environment.
Biopesticides are the best alternative to reduce the use of synthetic chemicals.
They are derived from natural sources such as plants, fungi, bacteria, and other non-man-made synthesis.
They are easy to use and are environment-friendly.
According to project leader Dr. Eufrocinio C. Marfori, WiltCure is a biopesticide formulated after a series of laboratory and pot and field experiments carried out at the National Institute of Molecular Biology and Biotechnology of the University of the Philippines Los Baños (UPLB-BIOTECH).
In a project report submitted to PCAARRD-DOST, Marfori indicated that the product was developed after a co-culture consisting of potato callus and microbe showed the highest inhibitory activity against the pathogen.
This co-culture was formulated into a biopesticide as a dry powder and was named WiltCure.
Toxicity tests showed that it is non-toxic to mammals and to both terrestrial and aquatic invertebrates.
The project’s researchers reported favorable results when WiltCure was evaluated under greenhouse and field conditions.
Pot experiments likewise showed that plants treated with WiltCure have better plant height and fruit yield.
Also, yellowing and wilting of foliage, symptoms of disease infection, were not observed compared with untreated plants and plants treated with synthetic pesticide.
Field experiments showed that incidence of yellowing and wilting in untreated plants were not observed in plants treated with WiltCure.
Likewise, height and fruit yield were noted to be higher in plants treated with WiltCure.
The researchers have recommended further testing of the effectiveness of WiltCure not only in one location but in other regions as well.
They reported the possibility that WiltCure can also control Fusarium wilt in banana, ginger, and other crops.
This research project is one of the components of the program, Development and promotion of enhanced and new biofertilizers, biostimulants, and biopesticides for increased crop productivity of the UPLB-BIOTECH./PN
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