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Cotton Pest & Disease Management | Insecticide & Miticide Efficacy

Cotton is a major crop that is prone to a wide range of pests, diseases, and weeds. These factors can reduce both the yield and quality of cotton production significantly. At AcroTerra, we offer comprehensive solutions for managing these threats, including effective pesticide products tailored to cotton farming needs. Additionally, we provide customized pesticide formulations by combining multiple active ingredients to address specific pest and disease pressures, ensuring your cotton crops are well-protected.

Technical Spectrum Matrix

Efficacy & Longevity of Cotton Insecticides and Miticides

Comprehensive reference for chemical selectivity, residual persistence against target pests, impact on beneficial natural enemies, and target spectrum.

Product (Common Name)SelectivityPersistence (Pest)Persistence (Beneficials)Major Target Pests
bifenazatehighshortshortmites
imidaclopridhighmoderateshortaphids, lygus bug
esfenvaleratelowlongmoderateloopers, beet armyworm, other caterpillars
acetamipridhighmoderate to longshortwhiteflies, aphids
abamectinhighlongmoderatemites(resistance in some twospotted and Pacific spider mite populations)
Bacillus thuringiensishighshortshortloopers, beet armyworm
beta–cyfluthrinlowlongmoderatelygus bug, beet armyworm, looper
clothianidinlowmoderatelonglygus bug, aphids
bifenthrinlowlonglonglygus bug(resistance in some lygus bug populations), whiteflies, beet armyworm, looper
flonicamidhighmoderateshortlygus bug, aphids
proparitehighmoderateshortmites(resistance in some twospotted and Pacific spider mite populations)
thiamethoxamhighmoderateshortwhiteflies, aphids
chlorantraniliprolehighunknownshortprimarily caterpillars
buprofezinhighlonglongwhiteflies
thiamethoxam seed treatmenthighmoderate to longshortthrips, mites, lygus bug
fenpropathrinlowlongmoderatewhiteflies, lygus bug(resistance in some lygus bug populations)
novaluronmoderatemoderatemoderatelygus bug, beet armyworm, loopers
dimethoatemoderateshortshortlygus bug(resistance in some lygus bug populations), aphids, thrips
diflubenzuronhighmoderateshortbeet armyworm, other caterpillars
fenpyroximatehighmoderateshortmites
pymetrozinehighshortshortaphids
imidacloprid seed treatmentmoderatelongmoderateaphids, thrips
Gossyplurehighmoderatenonepink bollworm
methoxyfenozidehighmoderatemoderatebeet armyworm, other caterpillars
pyriproxyfenhighlongshortwhiteflies
methomyllowshortshortloopers, beet armyworm, aphids
imidacloprid+beta-cyfluthrinlowlongmoderatelygus bug, aphids
malathionlowshortshortgrasshoppers
zeta-cypermethrinlowlongmoderatelygus bug, beet armyworm, loopers
azadirachtinmoderateshortshortaphids, whiteflies
spiromesifenhighmoderatemoderatemites, whiteflies
Oilslowshortshortaphids, whiteflies
hexythiazoxhighmoderateshortmites
acephate foliar treatmentlowmoderatemoderatethrips, lygus bug, loopers, whiteflies
acephate seed treatmenthighmoderateshortthrips, aphids
spinetoramhighmoderateshortthrips
Sivantohighmoderateshortaphids, whiteflies
Soapslowshortshortaphids, whiteflies
indoxacarbmoderatemoderatemoderatebeet armyworm, loopers, lygus bug(suppression)
spinosadhighmoderateshortbeet armyworm, other caterpillars
sulfurhighshortshortmites
aldicarb: at planthighlongmoderatemites, aphids, thrips
aldicarb: sidedresshighlongshortlygus bug, aphids, mites
phorate: at planthighmoderatemoderatemites, aphids, thrips
dinotefuranmoderate to highmoderateshortwhiteflies, aphids, plant bugs
oxamyllowmoderatemoderatewhiteflies, lygus bug
lambda-cyhalothrinlowlongmoderatelygus bug, beet armyworm, looper
etoxazolehighmoderate—mites
Common Cotton Diseases
Pathology Control

Common Cotton Diseases & Protective Measures

Cotton Leaf Spot

(Cercospora leaf spot)
Impact & Crop Threat:

Causes circular lesions that coalesce, reducing leaf area and triggering premature defoliation.

Symptoms:
  • Brown to purple bordered circular spots on leaves
  • Premature leaf drop
  • Reduced photosynthetic capacity and boll filling
Critical Control Period:

Vegetative through early flowering

Recommended Fungicides:

Mancozeb, Azoxystrobin, Metalaxyl-M formulations

Fusarium Wilt

(Fusarium oxysporum f. sp. vasinfectum)
Impact & Crop Threat:

Vascular fungal disease causing systemic wilting, vascular browning, and premature plant death in severe cases.

Symptoms:
  • Yellowing of lower leaves progressing upward
  • Dark brown vascular discoloration inside stems
  • Stunting, wilting, and premature plant death
Critical Control Period:

Prevention at planting and seedling stage

Recommended Fungicides:

Seed treatment with Thiram, Prothioconazole; crop rotation and resistant cultivars

Entomology & Pest Management

Common Cotton Pests & Field Interventions

Cotton Bollworm

(Helicoverpa armigera)
Pest Impact:

Larvae bore into squares, buds, and bolls, causing flower drop, damaged fiber, and substantial yield loss.

Symptoms & Damage:
  • Bored holes and frass on cotton bolls
  • Larvae feeding inside young bolls
  • Premature boll drop and stained lint
Critical Control Period:

Flowering and boll formation

Recommended Insecticides:

Chlorantraniliprole, Lambda-Cyhalothrin, Spinosad, Bacillus thuringiensis (Bt)

Cotton Aphid

(Aphis gossypii)
Pest Impact:

Sap-sucking insects that stunt growth and excrete honeydew, causing sticky cotton and promoting sooty mold.

Symptoms & Damage:
  • Leaf curling and distortion
  • Yellowing leaves and stunted growth
  • Sticky honeydew and sooty mold on foliage and open lint
Critical Control Period:

Seedling through boll development

Recommended Insecticides:

Imidacloprid, Thiamethoxam, Flonicamid, Acetamiprid

Beet Armyworm & Loopers

(Spodoptera exigua & Trichoplusia ni)
Pest Impact:

Foliage-feeding caterpillars that cause ragged leaves and attack young squares during early vegetative stages.

Symptoms & Damage:
  • Ragged leaf margins
  • Holes in squares and young bolls
  • Skeletonized foliage under high pressure
Critical Control Period:

Early vegetative and squaring stages

Recommended Insecticides:

Bt products, Spinosad, Methoxyfenozide, Novaluron

Root-Knot Nematode

(Meloidogyne incognita)
Pest Impact:

Microscopic soil nematodes causing root galling, stunting, and heightened vulnerability to Fusarium wilt.

Symptoms & Damage:
  • Swollen knots or galls on root systems
  • Patchy yellowing and wilting across field
  • Poor nutrient and moisture uptake
Critical Control Period:

Pre-planting and land preparation

Recommended Insecticides:

Resistant varieties (NemX HY), crop rotation with non-hosts, precision deep tillage

Seasonal Calendar

Critical Control Periods for Cotton

Stage 01

Seedling to Early Vegetative

Protect young plants from aphids, thrips, cutworms, and damping-off

Stage 02

Squaring Stage

Monitor and suppress lygus, fleahoppers, and early caterpillar infestations

Stage 03

Flowering & Boll Formation

Intensive protection against bollworms, whiteflies, spider mites, and leaf spot

Stage 04

Boll Maturation & Open Boll

Prevent aphid/whitefly honeydew contamination on lint; observe PHI

Fungicide Spectrum:

Mancozeb, Azoxystrobin, Thiram, Prothioconazole

Insecticide Spectrum:

Imidacloprid, Thiamethoxam, Pyrethroids, Chlorantraniliprole, Spinosad, Flonicamid