Conditions for Import of Maize Seed B.E. …. (….) (1st Draft) Page 1 of 8 
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Notification of Department of Agriculture 
Re: Conditions for Import of Maize Seeds B.E. …. (….) 
 
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 The Department of Agriculture has completed pest risk analysis for commercial 
importation of maize seeds.   
 
 By virtue of the provisions of Section 8(2) and Section 10 of the Plant Quarantine Act 
B.E. 2507 (1964) amended by the Plant Qu arantine Act (No.3) B.E. 2551 (2008) The 
Director-General of Department of Agricu lture through the recommendation of the Plant 
Quarantine Committee hereby announces phytosanitary import requirements of maize seeds 
for sowing as follow:  
 
1. This notification shall be called “N otification of Department of Agriculture,             
Re: Conditions for Import of Maize Seeds B.E. …. (….).” 
 
2. This notification shall enter into force sixty days after the date of its proclamation in 
the Government Gazette.   
 
3. Permitted Plant Species 
 
Maize ( Zea mays ) seeds 
 
4. Permitted Country  
  
 All countries 
 
5. Quarantine Pests of Concern 
 
A list of quarantine pests of concern to th e Kingdom of Thailand for maize seeds is 
given in the Annex . 
 
 
6. Import Permit  
 
Import permit issued by the Department of Agriculture (DOA) is required.  
 
7. Means of Conveyance 
  
Conditions for Import of Maize Seed B.E. …. (….) (1st Draft) Page 2 of 8 
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Maize seeds must be imported from a port in  any country to a por t in the Kingdom of 
Thailand by air cargo or s ea cargo or land cargo.  
 
8. Requirements for Importation   
 
8.1 Maize seeds must be non-genetically modified organism. 
 
8.2 The shipment must be packed in new, clean packaging  and free of live insects, 
soil, sand, contaminant seeds, other plant materials (including leaf, stem material, 
fruit pulp, pod material) and animal materials (including animal faeces and 
feathers). 
 
8.3 Maize seed lots are required to fulf ill one of the following phytosanitary import 
conditions,  or a combination of the conditions  addressing each of the following 
twenty-eight quarantine pests; six bacteria i.e. Clavibacter michiganensis 
subsp.  nebraskensis, Pantoea agglomerans , Pantoea stewartii  subsp.  stewartii, 
Pseudomonas syringae pv. lapsa, Pseudomonas syringae pv. syringae, 
Pseudomonas fuscovaginae ; six viruses i.e.  Barley stripe mosaic virus, Chloris 
striate mosaic virus , Foxtail mosaic virus , High plains virus, Maize yellow 
stripe virus , Wheat streak mosaic virus  and sixteen fungi i.e.  Harpophora 
maydis, Ascochyta maydis, Claviceps gigantea, Bipolaris maydis race T , 
Fusarium culmorum, Gibberella avena cea, Gibberella zeae, Peronosclerospora 
heteropogoni, Peronosclerospora maydis, Peronosclerospora philippinensis, 
Peronosclerospora sacchari, Sclerophthora macrospora, Sclerophthora rayssiae var. zeae, Sclerospora graminicola, Sphacelotheca reiliana, Stenocarpella 
macrospora.  
 8.3.1  Maize seeds were produced in a country where the quarantine pests in 
8.3 are not known to occur. OR
  
8.3.2  Maize seeds were derived from parent pl ants that were inspected and tested 
during the growing seasons and found fr ee from the quarantine pests in 8.3. 
OR 
8.3.3 Maize seeds were officially tested and f ound free from the quarantine 
pests in 8.3. 
 8.4 Maize seeds were produced in the fi eld that were inspected during growing                
  seasons and found fee from Striga  spp.   
 8.5 Maize seeds must be dresse d with appropriated fungicides. 
     
9. Phytosanitary Certification  
   
9.1 A phytosanitary certificate (PC) or a re-export phytosanitary certificate issued 
 by the National Plant Protection Organization from the exporting country is  
Conditions for Import of Maize Seed B.E. …. (….) (1st Draft) Page 3 of 8 
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 required. The original copy must accompany every consignment to the 
 Kingdom of Thailand and bear one the following additional declaration, and/ 
 or a combination of the declarations addressing each of the quarantine pests:  
 
  “The consignment of maize  seeds was produced [country] where 
 Clavibacter michiganensis subsp.  nebraskensis, Pantoea agglomerans, Pantoea 
stewartii subsp.  stewartii, Pseudomonas syringae pv. lapsa, Pseudomonas 
syringae pv. syringae , Pseudomonas fuscovaginae , Barley stripe mosaic virus, 
Chloris striate mosaic virus , Foxtail mosaic virus , High plains virus, Maize 
yellow stripe virus,  Wheat streak mosaic virus, Harpophora maydis, Ascochyta 
maydis, Claviceps gigantea, Bipolaris maydis race T , Fusarium culmorum, 
Gibberella avenacea, Gibberella ze ae, Peronosclerospora heteropogoni, 
Peronosclerospora maydis, Peronoscleros pora philippinensis, Peronosclerospora 
sacchari, Sclerophthora macrospora, Sclerophthora rayssiae var. zeae, 
Sclerospora graminicola, Sphacelotheca reiliana  and Stenocarpella macrospora 
are not known to occur.  
 
OR  
 
  “The consignment of maize seeds was derived from parent plants that 
were inspected and tested during the growing seasons and found free from 
Clavibacter michiganensis subsp.  nebraskensis, Pantoea agglomerans, Pantoea 
stewartii subsp.  stewartii, Pseudomonas syringae pv. lapsa, Pseudomonas 
syringae pv. syringae , Pseudomonas fuscovaginae, Barley stripe mosaic virus, 
Chloris striate mosaic virus , Foxtail mosaic virus , High plains virus, Maize 
yellow stripe virus  and Wheat streak mosaic virus, Harpophora maydis, 
Ascochyta maydis, Claviceps gigantea, Bipolaris maydis race T , Fusarium 
culmorum, Gibberella avenacea, Gibbere lla zeae, Peronosclerospora heteropogoni, 
Peronosclerospora maydis, Peronoscleros pora philippinensis, Peronosclerospora 
sacchari, Sclerophthora macrospora, Sclerophthora rayssiae var. zeae, Sclerospora 
graminicola, Sphacelotheca reiliana  and Stenocarpella macrospora .” 
 
 OR 
 
  “The consignment of maize seeds was officially tested and found free 
from Clavibacter michiganensis subsp.  nebraskensis, Pantoea agglomerans, 
Pantoea stewartii subsp.  stewartii, Pseudomonas syringae pv. lapsa, 
Pseudomonas syringae pv. syringae ,  Pseudomonas fuscovaginae, Barley stripe 
mosaic virus, Chloris striate mosaic virus , Foxtail mosaic virus , High plains 
virus, Maize yellow stripe virus  and Wheat streak mosaic virus, Harpophora 
maydis, Ascochyta maydis, Clavic eps gigantea, Bipolaris maydis race T , Fusarium 
culmorum, Gibberella avenacea, Gibberella zeae, Peronosclerospora heteropogoni, Peronosclerospora maydis, Peronosclerospora philippinensis, 
Peronosclerospora sacchari, Sclerophthor a macrospora, Sclerophthora rayssiae  
Conditions for Import of Maize Seed B.E. …. (….) (1st Draft) Page 4 of 8 
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var. zeae, Sclerospora graminicola, Sphacelotheca reiliana  and  Stenocarpella 
macrospora .” 
 
  AND 
 
“The consignment of maize seeds wa s produced in the field that were 
inspected during growing seasons and found free  from Striga spp.” 
 
   AND 
 
“The consignment of maize  seeds was treated with appropriated 
fungicides .”  
 
 9.2 Information on disinfection treatment must be indicated in the appropriate  
  sections of the Phytosanitary Certificate. 
 
10. Import inspection 
  
10.1 When the consignments arrive at the point of  entry in the Ki ngdom of Thailand, 
the import inspection must be conducted af ter confirming the respective documents 
accompanying the consignments concerned. 
 
10.2 DOA reserved the right to have the c onsignment re-exported or destroyed at 
the importer’s expenses, if non-complianc e with documentary or phytosanitary 
import requirements is identified. 
 
10.3 All consignments must be inspected fo r the presence of live insects/snails, 
disease symptoms and contamination (contaminant seed, soil particles and 
animal and plant material) when arrive at  the point of entry in the Kingdom of 
Thailand. Subsequently, a representative sample must be drawn and submitted 
a designated laboratory for further anal ysis. The consignment must be held 
under quarantine pending re sults of the analysis. 
 
10.4 If genetically modified maize seeds are found, the consignment must be re-
exported or destroyed at the importer’s expenses. 
 
10.5 If the quarantine pests in 8.3 and 8.4  are found during import inspection, the 
consignment must be re-exported or destroyed at the importer’s expense. 
 
10.6 If quarantine pests of Thaila nd concern as stipulate in the Annex  are found, the 
consignment must be treated with an a ppropriated treatment (if available), re-
exported or destroyed at the importer’s expenses. 
  
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10.7 If the consignments are frequen tly found to be non-compliance with 
phytosanitary import requirements or other cases, DOA may suspend, terminate or impose additional specific import conditions from a certain 
country as the Annex  of this notification. 
 
10.8 If any live organism of potential quarantine concern to Thailand not listed in 
the Annex  is found, the consignment shall be  re-exported, destroyed or treated 
with an appropriated treatment (if ava ilable) at the importer’s expenses. The 
DOA reserved the right to temporary su spension of import from the identified 
pathway until a risk assessment of intercepted organisms is determined. 
  
    Issued on ……………………………………..  
 
                                                              
 Director-General 
                       Department of Agriculture          
 
                        
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Annex  
List of Quarantine Pests of Capsicum seeds 
Attached to the Notification of  Department of Agriculture 
Re: Conditions for Import of Maize Seeds B.E. …. (….) 
 
Scientific name Common name 
Insect  
Order Coleoptera  
    Family Bostrichidae  
 Prostephanus truncatus Larger grain borer 
    Family Cucujidae  
 Cryptolestes pusillus Flat grain beetle 
    Family Curculionidae  
 Caulophilus oryzae Broadnosed grain weevil 
 Graphognatus leucoloma White-fringed weevil 
    Family Languriidae  
 Pharaxanotha kirschi Mexican grain beetle 
    Family Ptinidae  
 Gibbium psylloides Shiny spider beetle 
    Family Silvanidae  
 Cathartus quadricollis  Squarenecked flour beetle 
    Family Tenebrionidae  
 Cyaneus (Cynaeus) angustus Large black flour beetle 
   Order Coleoptera  
     Family Dermestidae  
 Trogoderma glabrum Colored cabinet beetle 
 Trogoderma granarium Khapra beetle 
 Trogoderma inclusum Larger cabinet beetle 
 Trogoderma ornatum Ornated cabinet beetle 
 Trogoderma variabile Grain dermestid, warehouse beetle 
            Trogoderma vesicolor Trogoderma dermestid beetle 
Pathogens  
Bacteria  
 Clavibacter michiganensis subsp.  
 nebraskensis  Goss's bacterial wilt & leaf blight 
 Dickeya paradisiaca  Rhizome rot 
 Enterobacter dissolvens  Stalk rot 
 Erwinia carotovora pv. atroseptica   Potato blackleg disease   
 Pantoea agglomerans   Halo blight of corn 
 Pantoea stewartii  subsp.  stewartii   Bwilt of maize 
 Pseudomonas fuscovaginae Sheath brown rot 
 Pseudomonas rubrisubalbicans  Mottled stripe of sugarcane 
 Pseudomonas syringae pv. coronafaciens  Chocolate spot, halo blight 
 Pseudomonas syringae pv. lapsa  Bacterial stalk rot 
 Pseudomonas syringae pv. striafaciens  Bacterial: barley black node 
 Pseudomonas syringae pv. syringae  Holcus spot, bacterial canker or blast 
 Pseudomonas viridiflava  Bacterial leaf blight of tomato 
Fungi   
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Scientific name Common name 
 Ascochyta maydis Ascochyta leaf blight 
 Bipolaris maydis race T  Southern corn leaf blight 
 Cercospora zeae - maydis  Gray leaf spot  
 Claviceps gigantea  Horse's tooth 
 Cochliobolus ravenelii False smut 
 Fusarium culmorum Culm rot of cereal 
 Gibberella avenacea  Fusarium blight 
 Gibberella zeae  Gibberella ear rot 
 Harpophora (Acremonium) maydis  Black bundle disease 
 Kabatiella zeae  Eyespot 
 Mycosphaerella zeae-maydis  Yellow leaf blight of maize  
 Peronosclerospora heteropogoni Rajasthan downy mildew 
 Peronosclerospora maydis  Downy mildew of maize  
 Peronosclerospora philippinensis  Philippine downy mildew 
 Peronosclerospora sacchari  Sugarcane downy mildew  
 Pestalosphaeria gubae Chlorotic spot 
 Phaeocytostroma ambiguum  Stalk rot and root rot 
 Phaeosphaeria maydis Leaf spot of sorghum 
 Physalospora zeicola Physalospora ear rot  
 Pyrenochaeta terrestris  Stalk rot and root rot  
 Pyrenophora teres  Net blotch 
 Pyricularia setariae  Blast of millet 
 Rosellinia necatrix  Dematophora root rot 
 Sclerospora graminicola  Downy mildew of pearl millet 
 Sclerophthora macrospora Crazy top 
 Sclerophthora rayssiae var. zeae  Brown stripe downy mildew 
 Sphacelotheca reiliana  Head smut of maize  
 Stenocarpella macrospora  Dry rot of maize 
Virus  
Barley stripe mosaic hordeivirus Barley stripe mosaic  
Chloris striate mosaic monogeminivirus Chloris striate mosaic  
Foxtail mosaic virus Foxtail mosaic 
High plains virus High plains virus 
Maize yellow stripe virus  Maize yellow stripe 
Wheat streak mosaic rymovirus Wheat streak mosaic  
Weed  
Agropyron repens Couch grass 
Alopecurus myosuroides  Black-grass 
Amaranthus albus  Tumble pigweed 
Amaranthus blitoides  Spreading amaranth 
Amaranthus retroflexus  Redroot pigweed 
Ambrosia trifida  Giant ragweed 
Asphodelus tenuifolius  Onionweed 
Avena fatua  Wild oat 
Axonopus fissifolius Common carpet grass 
Chenopodium album  fat hen  
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Scientific name Common name 
Cirsium arvense  creeping thistle 
Cirsium vulgare  spear thistle 
 Convolvulus arvensis Field bindweed 
 Digitaria velutina  velvet finger grass 
 Eragrostis cilianensis   stink grass 
 Galinsoga quadriradiata Shaggy soldier 
Heliotropium europaeum  common heliotrope 
Hibiscus trionum  Venice mallow 
 Orobanche  spp. Broom rape  
 Pennisetum clandestinum Kikuyu grass  
 Pennisetum macrourum African feather grass 
      Parthenium hysterophorus  Parthenium weed 
Polygonum aviculare  prostrate knotweed 
Polygonum convolvulus  black bindweed 
Polygonum persicaria  Redshank  
Raphanus raphanistrum wild radish 
Senecio vulgaris  Grinning (or Grundie)-swallow 
Setaria faberi  giant foxtail 
Solanum carolinense  Horsenettle 
Solanum elaeagnifolium  silverleaf nightshade 
Solanum viarum Tropical soda apple 
Spergula arvensis  corn spurry 
Striga angustifolia  Witchweed 
Striga aspera  Witchweed 
Striga densiflora  Witchweed 
Striga hermonthica  Witchweed 
Thlaspi arvense Field pennycress