What makes SG-based insecticides different from conventional types?
SG stands for Soluble Granule. These formulations are dry, free-flowing granules that dissolve entirely in water. Unlike emulsifiable concentrates (EC), they contain no oil-based solvents, making them safer for the crop, applicator, and the environment.
Two key characteristics of SG insecticides:
Fully water-soluble: No visible residue or oil films post-application.
Easier transport and storage: Less sensitive to temperature changes or photodegradation.
SGs are often more concentrated, allowing lower dose volumes for similar or better efficacy. This is critical in high-value crops like chilli, pigeon pea, cotton, and tomato, where timing and residue levels are crucial.
Why do farmers prefer SG over EC in day-to-day operations?
Farmers prioritize three things: efficacy, safety, and ease of application. In each category, SG formulations tend to outperform older liquid options.
ECs can emit strong chemical odors and pose higher phytotoxicity risks in sensitive crops during heat waves.
SGs, in contrast, are odorless, mix cleanly in water, and remain stable in hard water conditions.
During the last two seasons in states like Madhya Pradesh and Karnataka, a large number of groundnut, soybean, and pigeon pea growers switched to SG-based molecules. Most commonly, they chose to buy Emoctan Emamectin Benzoate 5% SC insecticide due to its field-proven results and ease of use across varied water qualities. These decisions were driven by visible yield improvements and a reduction in repeat sprays.
What makes SG insecticides more sustainable?
Sustainability in pest control isn’t only about bio-based inputs. It’s also about reducing over-application, limiting chemical residues, and preserving natural predators. SGs support these goals by:
Requiring fewer application rounds due to a longer residual effect.
Producing less runoff or drift due to better dispersion and solubility.
Having a lower impact on non-target species when used correctly.
A study by the Indian Institute of Horticultural Research showed that SG-based insecticides left 40–60% less detectable residue on vegetables compared to EC-based alternatives.
Are SG formulations more compatible with other inputs?
In tank blends, SGs are indeed more stable. In general, they work well with most fungicides, micronutrients, and biostimulants. As a result, spray cycles utilise less water and time.
Farmers have observed a noticeable decrease in foam generation and fewer problems with nozzle clogging. This facilitates the rapid coverage of vast regions, which is essential at times of high infestation.
"It’s not just about killing pests. It’s about doing it in a way that doesn’t disrupt everything else in the field."
What crops benefit most from switching to SG insecticides?
SGs are particularly effective in crops with sensitive foliage or where visual quality matters for market value.
Cotton and Pigeon Pea
Both crops are susceptible to Helicoverpa and Spodoptera larvae. SG-based formulations offer faster feeding stoppage and deeper canopy penetration, significantly reducing boll or pod damage.
Chilli and Tomato
In vegetable crops where residue levels are closely monitored, SG formulations reduce post-harvest chemical load. They’re also safer for repeated use near harvest windows.
Soybean and Groundnut
These legumes benefit from better systemic movement and more precise coverage offered by SGs, especially in humid climates.
How do SGs contribute to resistance management?
Resistance management is a growing concern. SG-based formulations, such as Emamectin Benzoate 5% SC, when used in rotation with different IRAC-mode insecticides, delay resistance buildup.
The main advantage here lies in:
Accurate dosing: SGs reduce the risk of sub-lethal exposure, which accelerates resistance.
Faster knockdown: Shorter exposure windows mean pests have less time to adapt.
The Cotton Australia IRMS tool supports the use of high-quality formulations as part of a long-term resistance delay strategy. SGs fit this model well by allowing effective rotation and reduced residue buildup.
Does weather affect SG performance?
SGs show superior stability under challenging weather. Unlike ECs that may degrade under UV or volatilize in hot climates, SGs remain effective for longer.
Rainfastness: Most SGs bind better to leaf surfaces, maintaining efficacy post light rainfall.
High humidity enhances penetration for SGs, improving larval mortality in crops such as brinjal and soybean.
Field trials in Tamil Nadu showed SGs performing 22–35% better than ECs in yield response under monsoon conditions.
What role does application equipment play?
SG pesticides work best with contemporary sprayers that have fine nozzles and steady pressure settings. These items don't clog or backflow because they disintegrate entirely. Better leaf coverage and more precise distribution are also expected.
To further cut labour expenses and water use, some farmers combine SGs with boom sprayers or drone spraying. It is ideal for settings involving precision agriculture.
What does the future of crop protection look like with SGs?
Innovation in formulation is the way of the future. With SGs, traditional active substances can be delivered more precisely and with less waste in a cleaner, more intelligent manner. SGs will probably become the norm in both open field and protected agriculture systems as regulatory frameworks tighten and residue monitoring intensifies.
Farmers that adjust to these changes early on will surpass criteria for crop quality, cost effectiveness, and compliance.
Even if ECs are still used in some programmes, the trend is obvious. SG-based insecticides are raising the standard for pest management with improved field performance, safer handling, and a less environmental impact.
FAQs
Are SG-based insecticides safe for beneficial insects?
Yes, when applied according to guidelines. Many SGs, especially Emamectin, are selective and allow predators to thrive.Do SG insecticides cost more?
While per unit price may be slightly higher, the reduced number of applications and better control often make SGs more economical per hectare.Can SGs be used in drip irrigation?
No, most SGs are designed for foliar sprays only. Always check label directions for application methods.How quickly do SG-based insecticides work?
Feeding typically stops within 2–4 hours, though visible larval mortality may take 1–2 days depending on pest stage.
Do SGs have shorter pre-harvest intervals?
Yes, many SGs leave less residue and can be applied closer to harvest, depending on crop and label instructions.
