• Rice root aphid

  feeds on the roots of the host plant. The winged form is about 1.8 mm long, darker than the wingless form, with a brown-black head. Aphids in the winged [...] symptoms Because they suck the plant’s vital sap from the roots, plants infested with rice root aphids will exhibit some or all of the following symptoms: Wilting; [...] deposited on the plant by aphids promotes the growth of mould and fungus. Transmission of viral disease between plants. Life cycle and appearance of the Rice root

• Pollination checklist tomato

  bumblebee bites onto the flower and makes the flower vibrate. This is known as buzz pollination. The imprints of the bumblebee's jaw on the flower (bite marks) [...] higher temperatures, the bumblebees stop flying. From the moment, the bumblebees will occupy themselves with cooling the hive until the temperature drops [...] they are exposed is too high for a lengthy period, the hive and the colony may suffer damage. You should therefore position the bumblebee hive in the coolest

• Aphidoletes aphidimyza

  of the body contents. The larva then sucks out the body fluids, leaving the dead aphid hanging by its snout from the leaf to turn brown or black, and [...] directly on the soil or rockwool slabs or hang it in-between the plants Do not scatter the contents Once emerged, the adult gall-midges will leave the bottle [...] aphidimyza The predatory gall midge Aphidoletes aphidimyza is available in bottle ( Aphidend ). Open the bottle in the greenhouse Place the bottle directly

• Entonem keeps young orchids free from fungus gnats

  solution moving to ensure that the composition is homogeneous and the nematodes are distributed adequately and evenly over the crop.’ Important to avoid slower [...] also uses the predatory soil mite Stratiolaelaps scimitus . Investigating the effect of spraying Every week, Floricultura examines the action of the nematodes [...] come out of the packaging and later after spraying. Dennis van der Wel explains, ‘We dampen the potting soil and then spray the nematodes over the young plants

• Fall Armyworm

  lifetime. Eggs are white, pinkish or light green and spherical, and are usually laid on the underside of the leaves. The larvae ( caterpillars ) are 30-40 mm [...] to green to black. They have a distinct white inverted Y-shaped mark on the front of the head and four large spots on the upper surface of the last segment [...] host plant, depending on the crop, the stage of crop development, and the age of the larvae. On maize, young larvae usually feed on leaves, creating a c

• Aphidius colemani

  typical of the Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right [...] of the aphid population by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the entire [...] advice on the best strategy for your situation. Best conditions for use of Aphidius colemani The parasitic wasp Aphidius colemani is most effective between

• Drososan

  to hang the traps is in the shade along the sides of the plot, in the hedge (if available) and in the crop. If the crop is low, make sure the traps hang [...] above the ground. In taller crops, the traps can be placed in the crop Protect the traps against direct sunlight Check the traps weekly Once the luring [...] Fill the trap with approx. 200 ml of Fruit Fly Attractant Application Hang the trap on a branch or stick using the enclosed hook The most effective place

• Neoseiulus cucumeris

  hairs or in the axils of main and side veins. They are oval, white and have a diameter of approximately 0.14 mm. The larvae have six legs, are the same colour [...] colour as the eggs, and are only slightly larger. They do not need to feed to develop into a protonymph. The nymphs are larger than the larvae, have eight [...] for instance in sweet pepper crops as the predatory mite can establish itself in the crop before the pest appears. The success of predatory mites in controlling

• Trial results Onion fly and Fusarium wilt

  Before our products enter the market, they are extensively researched all across the globe. Making sure we can offer you the best solutions for a high yielding [...] Capirel against onion fly (Delia antiqua) in onion Effective control of onion fly Capirel efficacy (% reduction compared to untreated control) against onion [...] program B The Netherlands - Independent Trial (Vertify), 2020 For more information: www.Uireka.nl Capirel and Casea effectively decreased the number of

• Plant Pollinator interactions in high temperatures

  protection, the plant aborts the fruit to reduce fruit load on the plant and directs the assimilates to the vegetative growth of the plant. This is undesirable [...] One of the most clearly defined guidelines in the greenhouse industry is the optimum temperature range for pollination. Growers want to keep the greenhouse [...] energy from the plant, and it is one of the first processes to fall by the wayside if the plant cannot produce enough assimilates. In the act of self