Propargite: A Selective Acaricide for Mite Management

Technical Introduction

Propargite (IUPAC: 2-(4-tert-butylphenoxy)cyclohexyl prop-2-ynyl sulfite) is a non-systemic acaricide developed specifically for the control of mites in agriculture.

It belongs to the sulfite ester chemical class and is highly effective against all active stages of phytophagous mites (larvae, nymphs, and adults), while leaving predatory mites and many beneficial insects relatively unaffected.

• Mode of Action: Mitochondrial electron transport inhibitor (METI, Complex II inhibitor).

• Selectivity: Strong activity against Tetranychid mites but low toxicity to most non-target insects.

• Application Type: Contact acaricide with long residual effect.

Applications

• Agriculture:

  • Widely used in cotton, citrus, tea, coffee, grapes, apples, soybeans, maize, and ornamentals.

  • Targets two-spotted spider mite (Tetranychus urticae), red spider mite, European red mite, and other phytophagous mites.

• Special Use:

  • Especially valuable in cotton and citrus mite control, where resistance to other acaricides is common.

Advantages

• Highly Selective: Controls plant-feeding mites while sparing beneficial predatory mites and pollinators.

• Fast Action: Quick knockdown of active mite stages.

• Extended Residual Control: Provides 2–4 weeks of protection depending on crop and conditions.

• Resistance Management: Useful rotation partner with other acaricides to delay resistance development.

• Formulation Versatility: Available in wettable powder (WP) and emulsifiable concentrate (EC) formulations.

Specifications (Typical Parameters)

FAQ

Q1: Does Propargite control insects as well as mites?
A: No. Propargite is selective to mites only and is ineffective against insects.

Q2: Is Propargite systemic?
A: No. It is a contact acaricide, acting only on mites that come into direct contact with treated surfaces.

Q3: How long does Propargite protect crops after application?
A: It offers 2–4 weeks of residual control, depending on dosage and crop conditions.

Q4: Can Propargite be used in integrated pest management (IPM)?
A: Yes. Because of its selectivity, it is compatible with IPM programs that rely on beneficial insects.

Q5: Is Propargite safe for pollinators?
A: Generally, yes. It has low toxicity to bees, but applications should still avoid active flowering periods.

Q6: What precautions are necessary when using Propargite?
A: It is toxic to fish and aquatic organisms, so avoid contamination of waterways. Use protective gear during handling.