Case Study Two – Photosynthesis upon Tomato plants

The growth rates of three week old Marglobe tomato plants were significantly increased after they received Harpin Alpha Beta treatment. This was evidenced by a 19.8% improvement in photosynthesis rate one day after application, and further amplified to 25.4% four days following the spraying process when measured with Li-Cor LI 6400 between 10:00 am and noon daily over the course 6 days post-treatment.


Harpin Alpha Beta has demonstrated efficacy in stimulating photosynthetic activity across a plethora of diverse plant species. Research findings have displayed an increase in net CO2 uptake and consequent increases to various plants’ basal rates for up to four days following treatment under both laboratory-controlled conditions as well as field environments. Species studied include wheat, tomato, grapes, strawberry, and the vegetable staple -asparagus.

New Study Shows Halo Harpin’s Effectiveness Against Spider Mites in Crop Protection

Harpin Alpha Beta is a protein-based biopesticide that is derived from the naturally occurring plant pathogenic bacterium, Erwinia amylovora. It has been shown to have some efficacy against a variety of pests, including spider mites.

Studies have found that Harpin Alpha Beta can induce a systemic resistance response in plants, which can help to protect them against various pests and diseases. This response includes the activation of defense genes and the production of phytohormones that can help to strengthen the plant’s immune system.

In particular, Harpin Alpha Beta has been found to be effective against the two-spotted spider mite, which is a common pest of many crops, including tomatoes, peppers, and strawberries. In one study, the application of Harpin Alpha Beta to tomato plants reduced spider mite populations by up to 85%.

However, it’s important to note that while Harpin Alpha Beta can be effective against spider mites, it may not be a standalone solution for pest control. Integrated pest management practices, which include a combination of cultural, biological, and chemical controls, are often needed to effectively manage pest populations in a sustainable way.