Agricultural Products Crop Diseases Garlic, Onion and Cítricos.RD
(1) CROPS: Garlic (Allium sativum)
Planting Zones in the country,
Constance
Province, La Vega, Dominican Republic
prevailing meteorological conditions: high and
70oF/65oF minimum, these conditions can vary, depending on the period of time.
Distribution of Disease:
Constance.
Pathogen (Disease)
Alternaria porri (purple Mancha, leaf blotch)
Constance
Aspergillus spp. (Bulb rot)
Constance, and warehouses.
Botrytis sp. (Gray mold neck rot)
Constance is a very important field and in stores
Ditylenchus dipsaci (nematode bulbs).
Constance. Is causing bulb rot disease. It is very important and common in soils where it is grown. Product is controlled using chemical nematicides in pre-sowing, eg Furadan and Mocap
Erwinia sp. (Bulb and neck rot)
Constance.
Fusarium spp. (Damping-off, root rot). Constance
Helminthosporium sp. (Leaf spot)
Constance
Penicillium sp. (Bulb rot.)
Constance in the stores is low incidence, low severity
Peronospora destructor (downy mildew, Constanza, very severe in the field, chemical management, the incidence is high and severe throughout the crop cycle.
Phytophthora sp. (Damping-off), Constance, chemical handling
Pyrenochaeta terrestris (Pink root).
Constance, is presented with a low incidence and it is quite severe in the affected bulbs.
Pythium sp. (Damping-off, poorly Del stalks). Constance
seedling stage and little effect, occurs when humidity is high.
Rhizoctonia sp. (Mal
Damping-off. stalks), Constanza, low
Sclerotium cepivorum (white mold).
occasional low-incidence disease, no control measures are taken from diseased plants are removed
Constance
Sclerotium sp. (Damping-off, white mold)
Constance
Stemphylium sp. (Leaf spot)
Constance, is very frequent and the severity is moderate
Helicotylenchus sp. (Spiral nematode)
Constance
Meloidogyne sp. (Nematode nodules), Constance
Trichodorus sp. (Dwarf root nematode)
Constance
Phytosanitary Management
Types:
a) Chemicals: Methods of control.
b) Use of seed security.
c) After seed disinfection and final land.
d) Use of resistant varieties.
e) Crop rotation.
Note: The chemical control
active substances to be used to find the most updated market.
(2) CULTURE: Onions (Allium Cepa)
planting area in the country:
a) Bani, Sep. / Jan.
b) Vallejuelo Dec / Feb.
c) Constance January / June.
d) San José de Ocoa December / February.
f) Azua Nov. / Dec.
g) Northwest Line August / December.
prevailing meteorological conditions: Bani
76th / 62nd F, Vallejuelo75o / 61st F, San Jose de Ocoa 78th / 64 or F, Azua 76 º / 72 º F, Line north 83 º / 79 º F. The conditions are subject to change.
Distribution of Disease:
a) Bani.
b) Vallejuelo.
c) Constance.
d) San José de Ocoa.
f) Azua.
g) Northwest Line.
Pathogen (Disease)
Alternaria porri (Mancha purpurea), chemical management,
The incidence is high and severe
Aspergillus sp. (Black rot)
Botrytis alli (gray mold, crown rot)
Colletotrichum sp. (COCOTEA of onion)
Ditylenchus dipsaci (bulb nematode)
Erwinia carotovora (bacterial soft rot), the main damage is in storage, is controlled by removing affected bulb.
Fusarium sp. (Basal rot) Chemical Management,
the incidence is high and severe, is controlled early to avoid Camping-off in combination with the Phytophthora sp
Helminthosporium sp. (Leaf spot)
Heterosporium allii (leaf blight)
Peronospora destructor (Mildew of the onion) chemical management, the incidence is high and severe throughout the crop cycle.
Phytophthora sp. (Damping-off). Chemical management, the incidence is high and severe, early control
Pyrenochaeta terrestris (Pink root) is of low incidence, when attack is severe, and remove the plants.
Pythium sp. (Damping-off (basal rot) chemical management, the incidence is high and severe, is controlled early to avoid Camping-off in combination with the Phytophthora sp
Rhizoctonia sp. (Damping-off, evil the seed) (basal rot) Chemical Management,
The incidence is high and severe is controlled at an early age to avoid Camping-off in combination with the Phytophthora sp
Sclerotium rolfsii (white rot) (Sclerotium cepivorum)
Stemphylium sp. (Leaf spot) is not as severe incidence of this disease.
Helicotylenchus sp. (Spiral nematode)
Meloidogyne sp. (Nematode galls)
Pratylenchus sp. (Root lesion nematode)
Rotylenchulus sp. (Reniform nematode)
Tylenchorhynchus sp. (Nematoda broom)
(3) CULTURE: Citrus (Citrus spp)
Planting Area in the Country:
a) Hato Mayor,
b) The Seibo,
c) Higuey,
d) La Romana,
e) San Cristobal,
f) Azua,
g) Puerto Plata. Sept. / December It
Note: this area is planted under rainfed conditions.
prevailing meteorological conditions:
Hato Mayor, Seybo, Higuey and La Romana 79 º / 65 º F, San Cristóbal Azua, 76 º / 62 º F. Puerto Plata and 77 º / 65 º F. This is because they vary according to the average climate and seasons, this is the current.
Pathogen (Disease)
Alternaria sp. (Leaf spot, black rot of fruits)
low incidence and low severity.
not taken control measures.
Blight (citrus blight)
low incidence and low severity.
No control measures are taken.
Capnodium sp. (Fumagina)
not taken specific measures for this disease
Cercospora sp. (Mancha in fruit)
Cephaleuros virescens (green alga)
low incidence and low severity.
No control measures are taken.
Colletotrichum gloeosporioides (Anthracnose)
low incidence and low severity.
No control measures are taken.
Corticium sp. (Mal de lint)
low incidence and low severity.
No control measures are taken.
CTV, Citrus Tristeza Virus (Citrus Tristeza)
change in the culture of planting material.
Elimination of severely affected plants.
Diaporthe sp. (Melanosis)
low incidence and low severity.
No control measures are taken.
Diplodia sp. (Dieback)
low incidence and low severity;
No control measures are taken. Elsinoe
sp. (Rona)
low incidence and low severity.
No control measures are taken.
Fusarium sp. (Root rot) usually do
chemical treatment with fosetyl aluminum applied to the plants and soil. Mycosphaerella
sp. (Greasy spot)
High incidence and low severity.
not taken specific control measures. The use of agricultural oils for other purposes have any effect on it.
Penicillium digitatum (green fruit rot)
low incidence and low severity.
No control measures are taken.
Penicillium italicum (blue fruit rot)
low incidence and low severity.
No control measures are taken.
Phytophthora sp. (Gummy)
usually do chemical treatment with fosetyl aluminum. Improving soil drainage and liming to improve pH.
Pythium sp. (Root rot) Low incidence
and low severity.
No control measures are taken. Septobasidium
pseudopedicellatum (Felt)
low incidence and low severity;
No control measures are taken.
Sphaceloma fawcettii (Elsinoe fawcettii, teleomorph) (Rona fruit)
low incidence and low severity
measures are not taken control.
Sphaeropsis sp. (Nodulation branches)
low incidence and low severity,
No control measures are taken.
Viroid (exocortis of citrus).
High incidence and low severity.
No control measures are taken.
Helicotylenchus sp. (Spiral nematode)
low incidence and low severity.
No control measures are taken.
Meloidogyne sp. (Nematode nodules)
low incidence and low severity.
No control measures are taken.
Pratylenchus sp. (Root lesion nematode)
low incidence and low severity.
No control measures are taken.
Radopholus sp. (Nematoda miner)
low incidence and low severity.
No control measures are taken. Rotylenchulus
sp. (Reniform nematode)
low incidence and low severity.
No control measures are taken.
Trichodorus sp. (Nematoda)
dwarf roots low incidence and low severity.
measures are not taken control. Tylenchorhynchus
sp. (Nematoda broom)
low incidence and low severity.
No control measures are taken.
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