Herbicides

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: a post emergent herbicide for the control of broad leaved weeds in wheat & barley.
Composition: Mecoprop- P 67% + Carfentrazone-ethyl 3.3% w/w
Formulation: Water soluble granules
Mode of Action: Mecoprop- p is a selective, hormone-type herbicide, absorbed by the leaves, with translocation to the roots. It affects enzyme activity and weeds growth.
Carfentrazone- ethyl is absorbed through the leaves leading to disruption of membranes by inhibiting the action of protoporphyrinogen oxidase, causing cell death.

Pest Range: All broad leaved weads including Pig weed, Mexican Poppy, Black jack, shepherds, Fat hen, Wandering jew, Naivasha weed, datura, Devils thorn, Macdonaldi, Cleavers, Mallow, Mayweeds, Chinese lantern, Knotgrass, Redshank, Wild radish, Charlock, Black nightshade, annual Sowthistle Common chickweed
Crop Range: All varieties of Wheat, Barley, Rice, Oats, Lawns,
Rate of use: 0.6kg/ha (200-400L of water/ha)
60g/20L of water

Effect on bees: Low toxicity to bees.

PHI (Pre-harvest interval): 28 days
Reg. Status: Kenya- Registered PCPB(CR)0792
Tanzania- Not registered
Uganda- Registered Ugc/2018/001941/He/RR

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: a broad specturum selective herbicide for the control of grasses and broad leaved weeds. It is particularly effective on water grass (sedges)
Composition: Sulfentrazone 480g/L
Formulation: Soluble concentrate
Mode of Action: Sulfentrazone control weeds by process of PPO (protoporphyrinogen oxidase) inhibition. Sulfentrazone is taken up by the roots of treated plants. Plants emerging from treated soil turn necrotic and die after exposure to light

Pest Range: Sedges(Cyperus esculentus, Cyperus rotundus), Broad Leaved weeds(Amaranthus spp., Chenopodium album, Ageratum conyzoides, Polygonium spp., Commelina beghalensis, Galisinga parviflora, Tegetes minuta, Acanthospermum hispidium, Nicandra pysaloides, Physalis angulata, Richardia scabra, Solanum nigram, Sonchus arvensis, Conyza floribunda, Datura stramonium, Emex australis, Sonchus oleraceus), Grasses(Eleusine indica, Setaria verticillata, Digitaria sanguinalis, Panicum maximum)
Crop Range: Common beans, Soya beans and other legumes.
Rate of use: 300-600mls/ha on Common beans, Soya beans (Applied as pre-emergent)

Effect on bees: Low toxicity to bees
.
PHI (Pre-harvest interval): 14 days
Reg. Status: Kenya- Not registered
Tanzania- Not registered
Uganda- Registered Ugc/2019/002244/He/RRR

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: A residual Broadleaf Weed Herbicide
Composition: Clomazone 480g/L
Formulation: Emulsifiable concentrate
Mode of Action: Clomazone has both contact and residual activity. It disrupts the synthesis chlorophyll and carotenes which protect chlorophyll from sunlight. This results to chlorosis of the target plants and death due to energy depletion.

Pest Range: Apple of Peru(Nicandra physalodes), Potato Weed(Galinsoga parviflora), Blackberry nightshade(Solanum nigram), Fat hen(Chenopodium album), Amaranthus, Hogweed(Polygonum aviculare), Wild Radish(Raphanus raphanistrum) and stagger weed(Stachys arvensis)
Crop Range: Beans, Potatoes, Rice(Applied after planting but before seedlings emerge)
Rate of use: Beans and potatoes- 500-1L/ha, 200-400ml/acre
Rice- 400ml-1L/ha, 200-400ml/acre

Effect on bees: Non toxic to bees.

PHI (Pre-harvest interval): 45 days
Reg. Status: Kenya- Not registered
Tanzania- Registered TPRI HE/0314
Uganda- Not registered

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: a selective post emergence herbicide for the control of annual and perennial grasses in wheat & barley.
Composition: Fenoxaprop-p-ethyl 69g/L
Formulation: Oil Emulsion in water
Mode of Action: Fenoxaprop-p-ethyl is absorbed by leaves and stems of the plants and is translocated systemically. It predominantly inhibits the synthesis of fatty acids in the meristem tissue of grassy weeds

Pest Range: Barnyardgrass, Blackgrass, Field sandbur, Foxtail species, Hairy crabgrass, Panicum species, Panicum spp, Roughstalk bluegrass, Smooth crabgrass, Tame oat, Wild oat, Windgrass
Crop Range: All varieties of Wheat and Barley, potatoes, beans, soyabeans, beets, vegetables, peanuts, flax, oilseed rape, cotton
Rate of use: 1L/ha (200Litres of water/ha)
100ml/20L of water

Effect on bees: not toxic to bees.

PHI (Pre-harvest interval): 80 days
Reg. Status: Kenya- Registered PCPB(CR)1545
Tanzania- Not registered
Uganda- Not registered

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: A modern post-emergence herbicide for the control of grasses and broadleaved weeds in Maize.
Composition: Nicosulfuron 20g/L+ Atrazine 200g/L
Formulation: Dispersion in oil
Mode of Action: nicosulfuron is absorbed by both foliage and roots. Nicosulfuron effectively inhibits the enzyme acetolactate synthase (ALS), resulting in the interruption of cell division and elongation, causing death of sensitive weed species.
Atrazine is absorbed by both roots and foliage. It acts by inhibiting the photosynthesis at photosystem II.

Pest Range: Chloris gayana, cynodon dactylon, Elusine indica, Cyperus esculentus, Raphanus raphanistrum, Galinsoga parvi, Commelina bengalensis, Oxalis latifolia, Amaranthus hybridus, Datura stramonium, Bidens pilosa, Emex austratalis.

Crop Range: Maize

Rate of use: 2L/ha (200Litres of water/ha)
200mL/20L of water

Effect on bees: Non- toxic to bee
PHI (Pre-harvest interval): 45 days
Reg. Status: Kenya- Registered PCPB(CR)2028
Tanzania- Not registered
Uganda- Not registered

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: A post emergence herbicide for the control of annual and perennial grasses and broadleaved weeds in Maize.
Composition: Nicosulfuron 240g/L
Formulation: Soluble concentrate
Mode of Action: nicosulfuron, a selective systemic herbicide absorbed by both foliage and roots. Nicosulfuron effectively inhibits the enzyme acetolactate synthase (ALS), resulting in the interruption of cell division and elongation, causing death of sensitive weed species.

Pest Range: Grasses (Sweet buffalo grass, Red bristke grass, Johnson grass, Wild sorghum, Black-seed wild sorghum, Herringbone grass, Guinea fowl grass)
Broad leaved weeds (Red pigweed, perennial pigweed, spindlepod, Thorn apple, Dwarf marigold, tall khakiweed, common dubbeltjie)

Crop Range: Maize

Rate of use: 300mL/ha (200Litres of water/ha)
30mL/20L of water

Effect on bees: non toxic to bees.

PHI (Pre-harvest interval): 45 days
Reg. Status: Kenya- Registered PCPB(CR)1896
Tanzania- In the processes
Uganda- Not registered

Type: Herbicide
Class: Synthetic
Category: Non-organic
Description: A non selective herbicide for the control broad leaved weeds and grasses (for seedbed preparation) for barley Fields.
Composition: Glyphosate 360g/l
Formulation: Soluble liquid
Mode of Action: Glyphosate is absorbed across the leaves and stems of plants and is translocated throughout the plant.It disrupts the shikimic acid pathway through inhibition of the enzyme 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase. The resulting deficiency in EPSP production leads to reductions in aromatic amino acids that are vital for protein synthesis and plant growth
Pest Range: All broad leaved weeds and grasses.

Crop Range: Can be used in no-tillage systems and seedbed preparation for all crops.

Rate of use: 0.5-1L/ha(young weeds), 1.5-3L/ha(actively growing weeds), 3-6L/ha(mature weeds)

Effect on bees: Not toxic to bees.

PHI (Pre-harvest interval): 65days
Reg. Status: Kenya- Registered PCPB(CR)0414
Tanzania- Not registered
Uganda- Registered Ugc/2019/002178/He/RRR