New Research on Chemicals and Chemistry Reveals Key Insights on Phosphorus and Black Spot Development in P. Brevitarsis Larvae

Strategic Insights -

Researchers at Guizhou Normal University have conducted a study on the chemical properties of Protaetia brevitarsis Lewis, a highly efficient insect species used in resource-treatment processes. The study focused on the relationship between phosphorus content and the development of black spots in larvae, which can significantly impact their treatment efficiency and survival.

The research, funded by the National Undergraduate Training Program for Innovation and Entrepreneurship and the Guizhou Provincial Science and Technology Projects, found that the severity of black spot occurrence is corelative with phosphorus content in P. brevitarsis larvae. Moderate concentrations of L-O-phosphoserine and potassium phosphate monobasic were found to enhance larval feeding efficiency, while higher dietary phosphorus concentrations may have adverse effects.

The study offers new insights into the potential of P. brevitarsis for biodegrading and reusing spent mushroom substrate (SMS), transforming waste into eco-friendly resources with significant and lasting benefits for environmental sustainability.

Key Takeaways:

  • The study revealed that the development of black spots in P. brevitarsis larvae is corelative with phosphorus content, with moderate concentrations of L-O-phosphoserine and potassium phosphate monobasic enhancing larval feeding efficiency.
  • Higher dietary phosphorus concentrations may adversely affect larval feeding efficiency and overall survival.
  • The research highlights the potential of P. brevitarsis for biodegrading and reusing SMS, transforming waste into eco-friendly resources with significant benefits for environmental sustainability.
  • The study provides new insights into the relationship between phosphorus and black spot development in P. brevitarsis larvae, which can inform the development of more efficient resource-treatment processes.

Statistics:

  • The study used third-instar larvae of P. brevitarsis, which were fed various concentrations of L-O-phosphoserine and potassium phosphate monobasic to assess the effects on black spot development and feeding efficiency.
  • The research found that the maximum severity of black spot occurrence was observed at a concentration of 0.296 g/kg in L-O-phosphoserine and 0.408 g/kg in potassium phosphate monobasic.
  • The study concluded that moderate concentrations of L-O-phosphoserine (0.296 g/kg) and potassium phosphate monobasic (0.408 g/kg) can effectively enhance larval feeding efficiency.

Sources:

  • NewsRx LLC. Findings from Guizhou Normal University Has Provided New Data on Chemicals and Chemistry (Relationship Between Phosphorus and the Black Spot Development In Protaetia Brevitarsis During Spent Mushroom Substrate Resource-treatment Process). Journal of Technology & Science. November 2, 2025; p 588.
  • International Journal of Tropical Insect Science. Relationship Between Phosphorus and the Black Spot Development In Protaetia Brevitarsis During Spent Mushroom Substrate Resource-treatment Process. 2025.