Soybean is one of the major crops cultivated during the Kharif season for achieving high yields. With proper planning and management, farmers can reap good harvests. However, in recent times, due to changing climatic conditions and the increasing incidence of sap-sucking pests, there has been significant crop damage, with yield losses reaching up to 60–70%. While planning the soybean crop, various sap-sucking pests are frequently observed, such as aphids, green jassids, whiteflies, and thrips. These pests cause a range of symptoms on the crop and lead to severe economic losses due to their heavy infestation.

Aphid Pest:

Aphid infestation is commonly seen in soybean crops. Initially, they appear on tender leaves and shoot tips. These aphids suck sap from the leaves and secrete a sticky substance. This secretion further encourages fungal growth on the plant. They usually stay on the underside of the leaves, feeding on the plant sap. Their life cycle is about 2–3 weeks, but within this period, they have the potential to destroy the entire crop. Hence, timely spraying for aphid management is essential.

Green Jassid Pest:

The green jassid is a small pest, green in color and around 2.5 mm in length. It can be seen on the crop during all growth stages. Both nymphs and adults stay on the underside of the leaves and suck the sap from plant cells. This causes greenish-yellow patches to appear on the leaves. Additionally, they release toxic secretions into the plant tissues, which leads to yellowing and upward curling of leaf margins. Their population increases during changes in weather and continuous rainfall. Infestation from green jassids can cause up to 40–50% yield loss, which is why early spraying and monitoring are crucial.

Whitefly Pest:

Among the sap-sucking pests, whiteflies cause the highest level of infestation and damage. The adult whitefly is pale white, about 1–2 mm in size, and its wings are covered with a waxy coating. It feeds by staying on the underside of the leaves, but during heavy infestation, it can also be seen on the upper surface. Whiteflies attack the crop at all stages of growth. Their feeding stunts plant growth and results in flower and pod drop. These insects also secrete a sticky fluid that promotes fungal growth, which obstructs the plant’s photosynthesis process and significantly affects yields. Over time, whiteflies can also act as vectors for mosaic virus, leading to further crop decline.

Thrips:

Thrips found in soybean are slender, greenish-yellow insects with pointed ends. If neighboring fields are planted with crops from the same family—like tomato, chili, or brinjal—the risk of thrips infestation increases. Although thrips are sap-sucking pests, they first scrape the leaf surface and then suck the sap that oozes out. Their mouthparts are specially adapted for this feeding behavior. Thrips are also known to spread viral infections in the crop, and heavy infestations cause complete yellowing of leaves.

Management Measures for Sap-Sucking Pests in Soybean:

Sap-sucking pests feed on plant sap and weaken the crop’s growth and productivity. Therefore, timely management of these pests is critical. These pests alone can cause up to 60–70% crop loss. To protect crops from such infestations, the following preventive and curative measures should be implemented,

1) Maintain a weed-free field, as weeds often serve as alternate hosts for these pests.

2) Avoid excessive use of nitrogen-based fertilizers, which can promote tender growth attractive to sap-sucking pests.

3) Use reliable and effective pest control products for precise pest management.

4) To control whiteflies, jassids, and aphids, spraying Kay Bee Bio’s “Pesto Raze” is essential. For thrips control, use “Thrips Raze” during spraying

5) We can use pesto raze 2 ml per liter of water to control the sucking pest like white flye, aphid and jaccids and for cntrol the thrips pest we can use kay bee bio’s Thrips raze 2 – 2.5 ml per liter of water.

6) Spraying this solution helps in the complete eradication of sap-sucking pests and restores healthy green foliage. Both products are effective across all life stages of these pests. Hence, they deliver highly impactful results when used properly.

Effective management of sap-sucking pests is essential to prevent significant yield losses in soybean crops. Pests like aphids, jassids, whiteflies, and thrips damage plants directly and promote fungal growth and viral infections. Timely field monitoring, weed control, and balanced fertilization are crucial preventive steps. For reliable pest control, spraying Kay Bee Bio’s Pesto Raze and Thrips Raze ensures complete protection across all pest stages. These measures help restore plant health and support optimal crop productivity.