Crop protection in Pakistan: pests, diseases and new chemistry

Every major crop has its own set of problems, and weeds appear on every list. Heatwaves, water scarcity and soil degradation then add to the losses. The threats that Fertivero's R&D team tracks are listed below, crop by crop.

The lists differ by crop, but the pattern is the same. Diseases, insects and weeds act together in one season, so a plan that looks only at one problem can miss the others.

1. Cotton — Verticillium and Fusarium wilt, anthracnose, bacterial blight and Cotton Leaf Curl Virus, which reduce yield and fibre quality. Also pink bollworm, whitefly, jassids, thrips, mites and weeds.
2. Maize — Fusarium wilt, aflatoxin contamination, mites, Khapra beetle, fall armyworm, stem borers and weeds.
3. Wheat — stripe, leaf and stem rusts, Fusarium head blight, smuts, nematode-associated ear rots, aphids, armyworms, termites and weeds.
4. Rice — grain discolouration linked to humidity and to fungal and bacterial pathogens, plus stem borers, planthoppers and weeds.
5. Vegetables — fungal, bacterial and viral diseases, sucking pests, caterpillars and weeds.

Estimates put Pakistan's yearly spend on herbicides at USD 140–160 million. That figure rests on a 14% share of a pesticide market of USD 1.0–1.1 billion. Spending on insecticides is estimated at USD 200–205 million a year.

Across all pesticides, the estimate is about PKR 104–110 billion. These costs press on farm margins. Crop protection is therefore a real lever for farm profit and for national food security, and it is a strong reason to match each treatment to the need.

These figures are estimates and not audited totals. Read them as an order of magnitude, which still shows how much a grower and a country have at stake in each spray decision.

Fertivero's R&D team is running field trials across the cotton, maize, wheat and rice seasons. The trials aim to identify the right molecule, dose, timing, water volume and resistance-management strategy for Pakistani conditions. They cover diseases, insects and weeds in one integrated programme.

The focus follows the pressure in each crop: rusts, Fusarium head blight and aphids in wheat; Cotton Leaf Curl Virus, wilts, pink bollworm and whitefly in cotton; Fusarium wilt, aflatoxin and fall armyworm in maize; and grain discolouration, stem borers and planthoppers in rice.

Results are meant to guide product design, so that recommendations reflect local pest pressure rather than imported assumptions. Every candidate goes through laboratory, greenhouse and multi-location field testing. It is then registered with the Department of Plant Protection before sale. Registered before sold.

Fertivero's R&D department is developing formulations from chemistries that are not yet common in Pakistan. The ten chemical families being evaluated are listed below.

The families are being studied for new modes of action against bollworms, armyworms, whitefly, planthoppers, aphids, thrips, mites and difficult weeds. No result is claimed here. Each candidate must complete testing and registration first, and any use in the field must follow the registered label.

1. Isoxazolines
2. Meta-diamides
3. Pyropenes
4. Butenolides
5. Tetronic acids
6. Pyridinecarboxamides
7. Pyridine azomethines
8. Diamides
9. Spinosyns
10. Phenylpyrazolines

When the same mode of action is used again and again, pests and weeds can adapt, and control can start to fail. Families that act differently from older, widely used chemistries can be rotated. The aim is to protect product life and help keep control reliable.

Rotation is one part of a resistance-management strategy, alongside scouting and local extension advice. The Pakistan trials are designed to show how each family fits that strategy under local pest pressure. Local data matters here, because a recommendation should rest on what happens in Pakistani fields and not on imported assumptions.

Weeds compete with every crop above, and our companion article on weed control in wheat and cotton covers them in detail. In short, Fertivero is working on sensor-based weed detection and on a non-chemical, laser-based approach. These precision tools are designed to treat only weed-affected areas, with the aim of using less herbicide and easing the pressure that leads to resistance.

Testing continues through each season, and the findings will shape which candidates move forward and which do not. Fertivero works with technical supply and co-formulation partners as it develops its candidates. Until a product is registered, the advice for growers does not change: follow the registered label and local extension advice for every crop protection decision.

Our motto, "Higher Performance, Lesser Print", describes the aim of this work: crop protection that asks less of the land and of the grower's budget. If you grow, advise or supply crops in Pakistan and want to talk about field trials, write to info@fertivero.com.

1. Estimates of Pakistan's yearly pesticide spend — herbicides (USD 140–160 million, based on a 14% share of a USD 1.0–1.1 billion pesticide market), insecticides (USD 200–205 million) and all pesticides (about PKR 104–110 billion)
2. Fertivero R&D — priority diseases and insect pests by crop, and the field-trial programme across cotton, maize, wheat and rice