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Pine

Pine – whitish formations at the base of needles

Hello! I have a relatively young dwarf pine plant and I have noticed a pest between the needles. can you help me? is it a pest or a disease?
The plant seems otherwise healthy,I haven’t noticed any excess needles falling off.

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#161272

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[Armuro]

Hello. The symptoms observed in the attached photos resemble both a fungal disease, produced by the species Diplodia pinea (syn. Sphaeropsis sapinea), and an attack by pests of the Adelgidae family. So, please check carefully the formations at the base of the acicular leaves and detail their appearance: if you notice the presence of pests if the formations are present on branches and stems if you notice yellowing of some needles if you notice very small, black, rounded spots on some needles or on last year’s cones (if any), etc. Also, please mention if there are spruce trees nearby. If there are, it is recommended to check for the presence of galls on them. In addition, please mention how often, by what method, and with what quantity of water you water, if you have applied phytosanitary treatments or fertilizers. Some information about the environmental conditions in the area and some photos of the pine tree as a whole with a focus on the white formations would also be useful.

• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.

#165834

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[Armuro]

Thank you for your promptitude. I am attaching the photo. I noticed a small brown spider, but also many yellowed needles underneath the healthy ones. Also, there are some small white spots in the places between the pine needles. The bark on the trunk is extremely cracked with small festering holes from place to place. In the area, there are no other pine trees. I watered it 1-2 times /week and put a liquid fertilizer for conifers, 5 days ago (organic fertilizer for thuja 20 ml / 1 l water) being watered with 5 l of the solution obtained. The pine was planted 2 weeks ago by a specialist landscaping company and I saw that they also put some granular fertilizer on it when planting. Please leave me a shopping list of all the treatments I should apply to it, so I can save it, I am very fond of it! Thank you very much.

• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.

Attachments:

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#165866

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[Armuro]

Other photos

• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.

Attachments:

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   pine-whitish-formations-at-the-base-of-needles-6-165871-1.jpg
   

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#165871

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[Armuro]

Hello. Slight wilting inside the crown, or at the base of the crown, is a normal phenomenon in conifers, which occurs with the growth and growth of the crown and, therefore, the limitation of light infiltration. Overall, the pine in the attached pictures looks good. The slight decay may be due to several biotic and abiotic factors, such as stress during planting and changes in environmental conditions, possibly poor soil conditions (poor soil quality), presence of pathogens, poor humidity, etc. It is known that large plants have difficulty adapting after planting, and it is recommended that this operation be carried out outside the growing season (during the dormant period, before the beginning of the growing season) – Ornamental trees and shrubs - Planting guide. The success of planting will only be visible during the growing season. On the basis of the details provided and the attached photographs, it is not possible to say exactly whether the whitish formations on the needle are the result of the presence of Adelgidae pests or a fungal disease (possibly Diplodia Pinea). Thus, it is recommended to remove dry plant parts as well as heavily infested plant parts (with many whitish formations), using well-sharpened and disinfected tools (Power Pruner). As the high and constant humidity at ground level (accentuated by the presence of some materials) favors the installation and propagation of phytopathogens, it is recommended to remove the gravel layer at the base of the pine (as well as at the base of the thuja).
Afterwards, it’s recommend a foliar treatment with a fungicide such as Champ 77 WG, 20 g, at a dose of 20 g/10 L water, applied by spraying. Subsequently, 7-10 days after application of the fungicide treatment, 2-3 treatments with insecticides such as Faster 10 CE, 2 ml (applied by spraying in a dose of 2 ml/ 6 l water) and Teppeki, 1.5 g (applied by spraying at a dose of 1.5 g/ 10 l water), respectively by alternating them at intervals of 5-7 days between applications. Insecticides are recommended to be applied both on the aerial parts of the pine tree and on nearby herbaceous plants, respectively on the ground. Spray (Tech1) the solutions as finely as possible, so as to achieve a more uniform distribution of the solutions on the plant, both on the leaves and on the trunk. It is advisable to prepare a volume of solution corresponding to a single treatment (respecting the mentioned dosage) because the mixture already prepared does not have a vailability longer than 24 hours. More information about the optimal application of plant protection treatments can be found in our article: Phytosanitary treatments - environmental and labor protection.
As the pine is newly planted, it is recommended to administer a rooting stimulator, which at the same time contributes to improving soil quality, such as AMN Nordalge, 500 ml (by watering), Tree Shrubs, 1 litre (by watering) or AMN Verde, 500 ml (by watering) or root stimulator Wurzel-Fit, 900 g (by spreading around the plant, followed by watering), according to the instructions in the product description. If you have already applied another fertiliser to the soil, it is advisable to read the labels on both products (the one you have already applied and the one you will apply) carefully and follow the recommendations. Application should be done in such a way that the range of action of the fertilisers does not overlap.
In addition, 10-14 days after you have completed the foliar treatments, you may consider applying a foliar fertilizer, such as Evergreen Fluid, 350 ml or Fir Fluid, 350 mlas specified in the product description. They support plant resistance to disease, increase foliage density and help prevent deficiencies and browning of needles. More information about pine tree care can be found in our article: Pine, planting guide and care work.
Given the current condition of the conifer in the images and the details provided, it is not possible to say exactly how it will grow in the future.

• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.

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#165916

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[Armuro]

Thank you very much!

• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.
• This reply was modified 1 year, 9 months ago by Armuro.

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